She does not say, “Come closer.” She lets the room provide excuses.

The music is loud, so she leans in. The menu is easier to read from his side, so she moves around the table. Someone needs to slide over, and now her knee is near his chair. One of those means nothing. A few in a row start to look less random.

The part to watch is what happens after the excuse expires. The joke ends, but her shoulder stays close. She hears him fine now, but she does not move back.