A move pulled by straight up studs on first dates. Consists of the guy putting his arm up on the couch around the girl. Sends a message that "I'm in to you, but I'm not gunna try hard to get some." 50% of the time, its works all the time.

Hover arm is the thing you see when a nerd or loser take a picture with a person of the opposite sex, their arm hover over the female's shoulders as the nerd and or loser thinks women are a mythical creature that can't be touched.