• Get drunk (just a bit) at home
• Go clubbing, enjoy the music (provided you don't go in a shitty club), dance a bit, have fun
• Maybe talk to new people once in a while, they have friends, you have friends, that makes a big group, and then you can swap groups, so you discover more and more people (this technique works)

You aren't forced to drink anything (well, maybe a beer once or twice, for the thirst) in the club.

And you won't stay alone in front of your screen, which seems the most important point.