Ear Tug
When you yank someone's ear so hard it sounds like a door slamming, just because you're totally smitten.
He tugged my ear during the bus ride and said, 'I think I'm in love with you.'
She tugged my ear during the lunch break and asked, 'Are you gonna be my boyfriend?'
He tugged my ear during the game and said, 'You're my favorite person, and I don't even know why.'