He might directly confront her. Naruto is not one to hold his tongue, so he could just barge into Tsunade's office and start yelling about why he's angry. For instance, he could say 'Tsunade - sama, your decision was wrong and it's going to hurt a lot of people!'
Naruto could also show his anger by going against her orders. If Tsunade tells him not to do something, in his anger, he might just do it anyway to prove a point. Like if she says not to investigate a certain mystery, Naruto, being angry, might start his own investigation secretly.
He could also distance himself from them. Naruto might choose to avoid his family, not wanting to be around them as a way to show his anger. He could move out or stop participating in family activities.
Another way would be through his actions. For example, if the villagers were being unjust to Naruto, he might start by protecting Naruto more visibly. He could also limit his assistance to the village in other areas until they corrected their behavior. This would be a clear sign of his anger and dissatisfaction with the villagers.
He might lash out with his magic. For example, he could send a spell flying at the source of his anger without really thinking. Sometimes, he just glares intensely, his green eyes filled with fury. And he may raise his voice, shouting at those who have angered him.
She might be initially shocked. Given her own past traumas and her relationship with Naruto, she could be hesitant at first. But then, considering Naruto's lonely situation, she might warm up to the idea and show a more maternal side towards him.
If Tsunade kisses Naruto, it could strengthen their relationship in a mentor - like way. Naruto might see it as a sign of deep respect and trust from Tsunade. He would likely feel more confident in following her guidance. For Tsunade, it could be a way of showing her pride in Naruto's growth.
Well, Tsunade being his grandma could give Naruto more direct access to her powerful medical ninjutsu knowledge. He might learn quicker and use it to his advantage in battles, like healing himself faster. This could also boost his confidence, knowing he has such a strong family connection.
Well, Naruto is known for his big heart. He might cook for Tsunade, just like he did for others in the village. While they eat, he could tell her funny stories about his adventures with his friends. His warm smile and friendly nature would slowly break through Tsunade's tough exterior. And he could also give her words of encouragement, like how important she is to the village and how much everyone looks up to her.
Naruto might be initially confused. He trusts Tsunade, so being kidnapped by her would be completely unexpected. He would probably start by asking her why she's doing this.
He often expresses his anger through sarcasm. For instance, when dealing with pompous colleagues or superiors, he uses sarcastic remarks to show his disdain.
She might give him cold stares in class. Hermione is not one to shy away from showing her emotions through her expressions. So, every time Snape is in her line of sight, she could fix him with a withering glare that clearly shows her displeasure.