I'm alone a lot, but luckily am interested in all sorts of things.
I do the usual stuff, reading, tv, pc, etc. But I also love photography and am always trying to get decent photos of nature. I walk a little each day, and do exercises at home to music every day. I love days out, mooching around shops or walking along sea-fronts, or on Dartmoor. And I go to the cinema whenever there is a good film on.
I socialise with friends once a week. And I see family about once a week.
I have to keep occupied to fight off depression. Mostly I succeed. The secret is to try and stay interested in the world around us, not just become introspective, I think.