Most Helpful Guy
Most guys do, but just from their gfs. Typically guys like showing more than telling so, putting your head on his shoulder interlocking arms are a good way to go, unless he is feeling crowded then give him some space.
Most Helpful Girl
I text a guy friend every now & then. When the convo ends I always throw in some crazy nicknames. He doesn't really care. When I see him I do the same thing & he laughs. I say stuff like 'sup hunk', 'hey boo', 'my love', 'boo bear'. Sometimes he'll throw one right back at me. Names are fun just don't get on his nerves with it lol.