I would use the hat to rob the chocolate factory and give all of it to the beggars in the streets anonymously specially the little ones, to let them taste something sweet instead of the bitterness they taste everyday.

I would use it.

Probably sit down somewhere in a park and yell weird stuff to mess with people.

and satisfy my curiosity* in a lot* of things :)

curious is an adjective so you can't use it directly along with my, instead you have to use a noun form that is curiosity.

Now..... i will use my imagination,So

i will travel all over the world ,

attend at all the universities all over the world

annoy people who bothered me before

mmmmm and satisfy my curious in alot of things:))