Someone said :
I go to the cinema on my own all the time. So much so that I now find it weird to go to the cinema with people now. I find it relaxing to go on my own and get to sit and enjoy the film without people around me talking and so forth.
As for going anywhere else on my own...nope. The cinema is fine on my own as it's something you can enjoy by yourself. Pubs, gigs, dinner etc all have a sort of social element to them i.e. people around you talking and laughing the whole time and since I'm absolutely brutal at talking to strangers (even shop assistants scare me) it's not something I could really do.
I have gone to gigs on my own though periodically and during the gig it's fine as you just enjoy the music but it's the before and the interval bit that I don't like as you tend to stand out like a sore thumb when you are on you own at these things. I even got accosted by a drunk drag queen at a Britney concert one time and had to be saved by a rather nice woman and her friend.