Ugh - I hate hanging out in bars. They're sooooo boring. Filled with boring people doing boring things.
If you're in the states there's a cool site:
www.meetup.com
Whatever you might be interested in doing it's a place for folks to get together and do those things in whatever local area you might be in.
So, if you like to go to jazz concerts, you can go with a bunch of other folks that like to go to jazz concerts.
If you like to discuss gardening, you can get together with folks that like to discuss gardening.
Very cool.