When Patti Levin shows Chief Kevin Garvey the sign that says, "You are not welcome here" she then underlines every word on the sign and shows it to him again. The sign is now different than before; the wording placement changed.
When Jill and Aimee smoke the joint it jumps back and forth between them without their passing it. The joint also disappears from Aimee's hand when she waves at a guy exiting the building.