I have had consensual sex with someone who I didn't like (at the time).
The following count as a social activity
Context for the first one was a discussion with Julie about how some people seem to be able to have sex with people, even if they don't like them, and other's don't seem to be able to do that.
Context for the second one is a discussion with a friend about whether sitting in the same room as other people while you all watch TV is a social activity or not.
I answered yes - because I actively get more enjoyment out of doing things while around other people than doing them when I'm by myself. I like company, even if I'm not actively engaging with them.