I'm still in the early months of sobriety, so I'm still learning how to have fun sober too. Right now, I go to a lot of meetings and just TALK to people. I spent so long isolated that it's good just to be around people.
The winter months aren't as exciting, but I still try to do stuff indoors. I like to do arts and crafts, like scrapbooking and cross-stitch. I do a lot of reading and I started watching my movie collection again, because I was too drunk to finish most of them! I don't have a job yet, so I also spend a lot of time doing spring cleaning, and taking care of things that never have gotten finished--like painting the walls, lol.