sort of.
Yes. Because I'm pretty sure girls find it gross if the guys have sweaty hands. Unfortunately .. yes.
on the guys shoulders
probably just to flirt
It depends on the guy. Sometimes they do sometimes they dont.
Traditionally I suppose you could say, they are around the girls waist.
Guys like it when girls aren't to open to being kissed. They like it when girls give them challenges. On the couch is good for any guy. Legs closed usually, if they're open, it could be more of an invitation to more then just kissing. Guys do like roaming their hands, but like it even more girls don't like being touched too much. Guys liek their hands around the waist, back, neck.
Girls wear a Corsage on there hands at prom.
Usualy to 'friendzone' them or maybe they are just being polite
it depends on the nature and likeness of the boy
the guys want the girls to notice them
Some are guys, some are girls.