Do you have any special interests? Like hiking, music, archery, painting... if you do, go to a hobby group and attend it weekly, talk to others, it'll happen!
If you have no special interests at all, then check out your local community and just pick up a hobby to join there, you'll get something new to do and get to be social! Where I live, the muncipalities, counties, whatever - they offer a list of hobbies seasonally and one can just join. They are either free or cost a yearly or seasonal price.