What would I say to the main character

If I had the chance to talk to my main character I would say that he needs to be more careful about going outside of the house. I would say it because every time he goes out he ends up saying something when he's invisible and it freaks people out. Like when he went to the library his toe got smashed by a chair and he yelled ouch. Which caused a girl to get freaked out about what he did.

    When he went to the school to go into a study room he was making a lot of noise which also freaked people out. When he went out in the hall with Alicia they kept saying stuff and people kept looking at Alicia like she was crazy or something. Then when Bobby was walking Alicia home she figured out he was invisible and she asked some guy on the street if he could see Bobby. The guy had told her no and she was freaking out because he really was invisible not just some creep on the street.