I wouldn’t say I have a super problem with public display of affection, but sometimes it can be a little grating. I’d say the smaller the space that you’re in the more uncomfortable it can be, or the better you know the people the more annoying it can be. If I’m on a subway platform I can keep on walking and it’s all right. But if I’m in a subway car that’s kind of packed and the people are right in front of me then I feel less tolerant. Friends who just flaunt it all the time I just deal with by making it blatantly obvious that I don’t want to see it like putting my hand up in front of my face. Fortunately I don’t have to deal with that on a regular basis though.