I'm alright with showing affection if it's deserved, I guess? I try to make my friends feel appreciated, anyway. I get the "I'm not bothering you, am I?" or some variation of it quite a bit, because I'm a very reserved person by default, but I'm not cold...at least, I hope I'm not. I try to be approachable and at least affable when I'm approached, but because I don't approach people myself very often I suppose I come across that way a lot. It's not intentional; I can be very affectionate with my friends~
Physical affection I'm awful at, because I can't abide being touched. If someone hugs me I tense and radiate disapproval and discomfort that would dissolve the offender into an impotent liquid puddle in an instant if it had any physical force to it, and anything else...well, people have to surprise me in order to give me any physical affection.