Ear Tug
A loud, ear-pulling way of showing you're so in love you might scream it from the roof.
I tugged my girl's ear during the party and said, 'You're the best person I've ever met.'
He tugged my ear during the walk and said, 'I'm gonna marry you one day.'
She tugged my ear during the movie and said, 'I can't wait to be your forever person.'