When Grayson has breakfast when he's got a date over she slams his newspaper down. the camera goes from the one direction to the other, in most of the shots she's holding her hand over his paper while they're talking. but the camera also switches to shots where Grayson is holding his paper normally.
When Jules and Josh are having lunch, they mention that they are on their 7th date. Jules then says that a previous date counts as 2 dates and they conclude that this date is therefore their 9th date. This is wrong. The previous date would already have been counted as 1 date, so they had to only add one date. Therefore their lunch date was their 8th date, and the special 10th date was actually their 9th date.