What activities do you enjoy? Do those, and you might encounter like-minded people.
Volunteer. People won't annoy you so much if you're working toward a common cause.
Exercise
Make someone's day. With this one, you won't even have to talk to anyone but you'll feel great. Pay for someone's order behind you at Starbucks, McD's, etc
Go a lake, river, etc and read a book/listen to music/take photos/run
Don't date until you enjoy your own company :-)