How do I start getting involved in social activities, like sports, etc.?

Anonymous
I've always wanted to play sports, hang out with people, etc. I don't have any friends though, and no people from my past that I can reconnect with.

I live in a very big city, if that helps. How can I go about starting to get involved in sports and other social recreational activities? Again, I have NO FRIENDS that I can convince to get involved with me; the few acquaintances I have are busy moving on with their adult lives. I'd like to learn how to socialize for once. Thanks.
Updates
+1 y
Thanks guys. More answers or more detail always welcome
How do I start getting involved in social activities, like sports, etc.?
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