i have never understood the "hello hug" that many people perform on basically anyone, because i only do that to my closest friends, and it took a while for me to get to the point where i felt it was appropriate.
touching other people is important, but only when it's significant. every hug, kiss, caress, pat, even seemingly innocent things as pokes, tickling or simple touches to get your attention mean something and bring us closer together - therefore should be taken seriously to some extent. ot's not nice to lie, even with touches ^^
same thing goes for verbal affection - i believe you should never say things you don't really mean. also, i rarely tell anyone i love them (or hate them, or anything that implies too strong a meaning for light use), even if i feel like that, because i think words are very powerful and should not be thrown around carelessly, so such things should be only said on suitable occasions, when you feel the time is right.
however, actions that can be interpreted as affectionate, such as giving gifts, help in anything and everything, those i feel more comfortable with, for some reason. maybe it's just the enfjs "people pleasing" side that shows in this, no idea.
basically, well, i guess my being affectionate is well organised, heheh, having categories and clear limitations and everything. i can be as cold when i feel it is appropriate as i can be intensely warm when that is what the other needs and i feel comfortable with.
im probably smothering...oops. But with other people not so much touchy touchy wise, but I am with words 
