First make some buddies by adding people as friends. Start from me as example.
Then you will be able to send them gifts ocasionaly. Small red icons appear on their av.
And you will be sent gift from them everytime they accept yours (automaticaly).
Or people loving you will send you gift... and when you accept they get rewarded back
everyone benefits.
Add me as your buddy and send me gift. When I accept yours you get something from me.