How much do you worry about what others think?

If I care about these people, yes. If I don't, thennah, their opinion means nothing to me. If I'm concerned, it will be because I have some sort of benefit/need them in some way. (e.g. My employer, so I don't get fired.)
Most of the time I appear like I actually care to people, in reality I'm just bored and want to make conversation or something. :D