Doin' the Dunkin' Dance

Alison, describes the unique dance performed when people with coffee in hand and people just entering meet at the entrance to a Dunkin' Donuts:

... Rather than just let the exiters struggle, however, the enterers (is that a word?) generally hold the doors. Which results in the exchange of a little hip swing, a little twirl around, a touch of jazz hands with the cups of joe, and a heartfelt "Thank you!" ...