Yes and no. It's hard for me to explain, because I can really be like two completely different people sometimes, largely to do with my hyperactivity and being medicated for it. Sometimes, I'm a really private person, who wouldn't even be comfortable hugging a friend in public, and, other times, I'm a really energetic and affectionate person who just wants to cuddle and doesn't care what anybody else thinks.
Those two different states of mind apply to other people as well. When I'm in my reserved state, I'll probably feel pretty weirded out being around an affectionate couple. When I'm in my hyperactive state, I'll probably laugh and tease them about it or ask if I can join in.