Things to do in San Francisco?

so its around 9pm and my friends and i are trying to think of things to do in san francisco tonight. we are all 19 so that can get us some places, but most places are 21 and up. we thought of ghiradelli square and going to the beach already, but we want something new. any ideas? thanks!Things to do in San Francisco?
Stone Grove Park on Sundays free music festival. Its fun!Things to do in San Francisco?
go 2 the crooked street and the golden gate bridge
i just have to say that my name is also meredith, and i went to san francisco several days ago. you could look up some underage clubs on google. Things to do in San Francisco?
Well I'd honestly just walk up and down going to various places, never staying at one place for TOO long, because there's just SO SO SO much to do.
It seems like you could find just about anything and everything you could want there. It is the most popular place in California to live. You might catch a movie being filmed there, there seems to be a lot done on those high streets. Things to do in San Francisco?
i won't go to GG bridge at night, it will be windy.

i'd go to GG park and Haight Ashbury next to it. many bars in Haight Ashbury, then walk down to civic center, union square, then north beach, pier 39 etc....