. I buff almost everyone because I like helping people, at least you get a buff back half the tome...so far sinse headstart for TOR,
I'll buff others if I remember/think about it, (which usually only happens when they buff me.)
Heck, half the time I forget to even buff myself. I've taken to using my buff as the dismount button, just so I don't forget to.
(edit: IIRC, I really liked how EQ2 did it. Any remotely long buff was simply an on/off toggle. Though I'll admit that pretty much removed drive-by buffings)