It's a slightly eccentric way of showing an additional touch of affection.
if a girl a nice perfume or a candle . a guy i would give a cologne or good meal and a lovely day of catering to him. if you are young like 13-15 then a gift basket or a gift card
Being a woman/girl myself I would like it if the guy i liked, or in any case, any guy would were cologne. A little too much may cause a girl to stay a bit further away than usual. I would say wear enough to smell good but so a girl/guy can not smell you from 2-4 feet away. :)
Most guys wear cologne, that makes a great gift. What about a gift card to their favorite store? How about a nice shirt? Or even a new watch? Depends what the guy is into. But cologne or the gift card is probably more efficient for a boyfriend gift.
A pack of condoms
well it depends on the guy, whether or not they like/wear cologne. if he does, then sure. but most likely, if he really likes you, he'll like anything you give him. (:
A gift a girl can give a guy if she is moving is a picture of her
gift him a good bag....guy or girl indians love bags...!!
For a teenage boy you are really going to want to take him to the store and allow him to choose his own scent. If this isn't an option then get him a small sized bottle of Eternity by Calvin Klein because it is a lighter scent that wont be overpowering to him, and will probably grow on him the first time a girl compliments him.
Yes the girl keeps it. It is considered a gift.
If you want to be in a relationship with that guy, then you would accept the gift. It also depends on the content of the gift itself.
it depends if your a girl most girls would like roses and chocolates and i have never seen a girl give a guy a valentine's day present unless it was a card
Obvious, if you're both old enough. A trip to the justice of the peace.