If it's someone I don't know well, I just try to be kind to them. If it is someone I know, I may take a few extra steps like gift-giving or doing them favors. As far as tolerance goes, I'm tolerant of most things. As long as people aren't being jerks, that's all I care about.
Edit: Oops, forgot I replied to this thread before! Well, this is a different perspective, at least!