>>/545501/
Okay, I'm just asking because that influences my reply.
Getting into a traditional sport like football or cricket might be a good idea depending on your personality. You might find you aren't well received if you aren't very good at them or don't have the blokey mindset. For that reason you might find the newer "meme" sports like ultimate frisbee to be a bit more welcoming. Historical re-enactment and HEMA type stuff attracts lots of spergy neet types. I've been going to the gym for a few years now and I've found the people there to be very welcoming and friendly. None of them are the aggro insecure types, they are all encouraging and helpful. That could be another avenue, especially because you can just do it on your own and interact as little or as much as you want unlike a team sport where you are expected to deal with them.
Getting in with old coots is another option. A church would probably be a bad idea as they'll assume you are on the brink of a breakdown (typically the way it goes with young men getting into Christianity) but something like the Rotary club might be good. Those cunts are always desperate for anyone under the age of 60 or so.
Are you more in want of friends or a gf?
Because if it is the latter then I don't really know what to say. Maybe a table top gaming group would be the way to go. Depending on which group you joined you could do alright there. They have a surprisingly high number of girls at those things (D&D is oddly popular with young women) and the men there would not present very formidable competition.
I'm an asocial loser myself so I can't offer any experienced advice. This is all just my own speculation.