dont get your hopes up. not a lot of people will respond to this. i could name a few things tho.
3) on cars
4) on the internet
6) phone cases
7) "I" things
8) games on their phones
9) gas for their cars
11) stuff for parties
12) a trip their planning on taking with their friends or families
13) things that they really dont need
14) other things
-be yourself, cuz everybody else is taken.
-dont be scared to ask a question, the most they can say is no