Love

(Scroll down to see "HUG.")

Also, I recommend you check out the "I love you" acronym sign:  ILY

The sign for "love" is made by crossing both hands over your heart.  (Middle of your chest.)  Your hands may be closed or open, but the palm side should face toward you.

HUG:
 You can either use the "A" handshapes, like I do below, or you can grab onto the upper arms with "curved hands." Use a double movement.

"serious" HUG
 Note:  Deaf people hug more than Hearing people do.  It's a cultural thing.