My third wish would be to be able to read peoples minds
I think this would be a bit of a dangerous power, as knowing what others think of you can be mentalling damaging, especially if they act differently than they think. Otherwise, this would be a good thing if you need to know what someone is feeling when they won't tell you if they are in a bad situation. Or if I'm with a friend we could play games and tricks on other people.
I think at school, this power in the hands of the wrong people could lead to cheating but handled well, this ability would be fun to play with. I think as long as it is kept tame, its a good power.