Peter could keep his identity secret by being very careful about the technology he uses. Since he's a fan of the Avengers, he knows what kind of tech they use to detect and track people. So, he could develop his own counter - measures. For instance, he could create a device that scrambles his DNA signature when he's in Spider - Man mode. He could also be strategic about when and where he shows up. If there's a big Avengers event, he could make sure Spider - Man is seen in a completely different part of the city. And when he has to interact with the Avengers as Peter, he could play dumb about any Spider - Man - related topics.
Well, Peter could use his fan knowledge to his advantage. He knows all about the Avengers' weaknesses and strengths. He could use this to plan his actions as Spider - Man in a way that doesn't arouse suspicion. For example, if he knows that Iron Man is really good at detecting energy signatures, he could find a way to mask his own when around him. He could also use his knowledge of the Avengers' relationships to create distractions. If Thor and Hulk are having an argument, he could use that moment to slip away unnoticed as Spider - Man. And he could always have an alibi ready. If the Avengers suspect Spider - Man might be Peter, he could have a story about being at a science fair or something else that a normal Peter Parker would be doing.
Peter could use his knowledge of the Avengers' schedules. For example, he could avoid being Spider - Man in areas where the Avengers are likely to be patrolling at the same time. Also, he could disguise his voice when interacting with them as Spider - Man, so they don't recognize any similarities to Peter. He might also modify his web - slinging patterns slightly when around the Avengers to make it seem like a different style from what they might expect from a local hero.
One possible plot twist could be that Peter is in a situation where he has to save the Avengers secretly as Spider - Man. Maybe they are captured by a powerful villain and Peter, using his knowledge of the Avengers' base and their habits that he learned as a fan, manages to rescue them without revealing his identity. Another plot twist might be that Peter starts to leave little hints about his identity, like using a specific web - shooting style that he once wrote about in a fan blog when he was fangirling over the Avengers. And the Avengers start to suspect there's something familiar about Spider - Man but can't quite put their finger on it.
His school life would be completely turned upside down. He'd probably become the center of attention, which could be both good and bad. Some students might idolize him, while others could be jealous. Teachers might also treat him differently, perhaps being more lenient or overly strict out of fear. He might also have to deal with new security risks at school as villains could target the school to get to him.
They might notice signs like Peter being overly withdrawn, flinching at sudden movements, or having unexplained injuries. Maybe they see him constantly on edge around certain people.
Well, it could also happen that Peter's Spider - Man suit technology gives him away. Maybe the Avengers have some advanced tech - sensing equipment, and when Peter is around in his suit, it gives off some unique signals that the Avengers pick up on. So, they start to look into it and eventually figure out that Peter is Spider - Man.
Tony Stark would probably be both proud and a bit worried. Proud because Peter is this brilliant young mind who has managed to be a hero on his own, but worried because he's just a kid. He might start to hover over Peter more, offering him better tech and trying to mentor him more closely. Captain America would likely be very accepting. He sees the good in people and would be happy to have another brave soul on the team. He'd probably offer Peter some words of wisdom about using his powers responsibly. Thor might be a bit clueless at first. He doesn't quite understand the whole 'secret identity' thing as well as the others, but once he gets it, he'd be all for having Peter around. He might see Peter as a little warrior and be eager to train him in his own Asgardian ways.
This situation can create a lot of opportunities for character growth. For Peter, he has to keep this huge part of his life hidden from someone he respects like Tony. He might struggle with the lies and the secrecy. For Tony, when he eventually finds out, it could be a shock that makes him re - evaluate his relationship with Peter. He might feel betrayed that Peter didn't trust him enough to tell him, or he could be impressed by Peter's ability to keep such a big secret.
Well, in a lot of such fanfics, it often starts with Peter making a small mistake while being Spider - Man. Maybe he leaves behind some evidence that's a bit too obvious, like his school notebook with his name on it at a crime scene. The Avengers, being the sharp - eyed group they are, start to piece things together. Tony Stark might be the first to suspect something, using his high - tech gadgets to analyze the蛛丝马迹 (clues). Once they figure it out, they could either be super protective of Peter, seeing him as a young and inexperienced hero, or they might be a bit wary, not sure if they can fully trust this new - found Spider - Man.
He might also get angry. Peter has a strong sense of justice. If he feels that the Avengers are being unfair, he could stand up to them. He'll use his quick wit and his powers to show that he's not going to be pushed around easily.
One possible outcome is that the Avengers would be initially shocked. They might have mixed reactions. Some, like Captain America, could be understanding and offer to help Peter manage his dual life better. Others, like Iron Man, might be concerned about the risks this revelation poses to Peter and his loved ones.
Well, with the Avengers knowing his identity, Peter's relationship with Natasha Romanoff could be really interesting. She might teach him some spy - like skills to keep his identity even more hidden from other threats. As for Thor, he could be a bit clueless about how to deal with a young hero like Peter, but still offer his support in his own way. And Peter's relationship with MJ would also change. She might be more involved in his superhero life now, which could bring them closer together or create some new tensions depending on how she reacts to the whole situation.