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 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!'
Minato might show his protectiveness by always being near Naruto in spirit. For example, he could leave behind some kind of jutsu or power that activates when Naruto is in great danger, like a hidden seal that releases a powerful defense.
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.
His hatred might make his relationships with his friends more complicated. For instance, Sasuke might view Naruto's hatred in a different way, either sympathizing with him or trying to convince him to let go of the hatred. This could create some tension or deeper understanding between them.
One possible reason could be the way the villagers treated him as a child. They ostracized him because he was the host of the Nine - Tails. He was often alone and looked at with fear and disdain, which could have gradually built up his hatred.
Naruto could also show his hatred through his actions. Maybe he refuses to cooperate with any mission or task that is directly related to the council's orders. He would rather do things his own way or follow the orders of someone he trusts more, like Kakashi or Iruka.
Well, Harry is known for his loyalty to his friends. So when they try to testify against him (maybe under some kind of spell or false evidence), he could get really angry. He might start pacing back and forth in the courtroom, his fists clenched, and then turn to his so - called friends and say in a cold, angry voice 'I thought you knew me better. How could you believe these lies?' His anger would be a mix of betrayal and the general unfairness of the trial situation.
Minato would likely be extremely shocked. Naruto is his son, and the idea of Naruto attacking him would be completely unexpected. He would probably try to talk to Naruto first, to find out what is wrong and why he is being attacked.
Naruto's relationship with the villagers could be affected. As he becomes a Minato fan, he would try to uphold Minato's legacy even more. The villagers, seeing Naruto's newfound admiration for Minato, might start to see Naruto in a new light, more like how they saw Minato. Also, his relationship with Hinata could be different. Naruto might start to model his family - centered values after Minato, which could bring him and Hinata even closer as they plan their own family.
She might start by giving them the silent treatment. Just ignoring them completely when they try to talk to her, which would be a very human way of showing anger.