She gives enough to make him curious, then pulls back

The obvious move is rarely the one people replay later. The sharper move is a clue that disappears before anyone can get comfortable with it.

A look across the table. A sentence with a second meaning. A smile that ends first. Then she turns back to the group, and the unfinished part is what sticks.

Something about her feels privately amused

This is the signal that tends to linger. She looks like she knows more about the moment than she is willing to say out loud.

Not smug. Not cruel. Just quietly entertained by the effect she is having, as if the whole scene finally caught up to something she understood minutes ago.

By then, the act has already slipped. The mystery is no longer whether she knows. It is what she will do with that knowledge next.