#1
I want to get some solo guitar experience in front of people and kind of put on a show. Where would you do this without wanting any money. At a carnival or some place like that?
#3
Both sound like something I would do. Just to get some experience in front of at least small groups of people and have a good time playing.
#4
if you go to school still.... lunch time. it is awesome. just sit around with your friends, bring your guitar to school. you start noodling, then by the end it will you be full on playing with your mates in awe.

otherwise, busking is great, and also little pub muso nights,