Take a hobby you enjoy then find a group/club in your area for your hobby. Look over their calendar and attend one of their events, ideally a new member meet and greet. Talk with the people there about the aforementioned hobby. If the experience was enjoyable, continue attending events hosted by the club, you will learn of many other similar events through them. If it was not enjoyable troubleshot then find a different club and try again taking into account the results of your troubleshooting. This should give you the social experience you are looking for.