Cisco smiles and pulls her a little closer, so that he can kiss her temple as they move up in the line. "I like the sound of that," he agrees, letting her go again so that he's not crowding her or being too clingy.

While he might not know what she's thinking, Cisco catches that look and he huffs softly, half a laugh. "What?" he asks. He's prompting her, without pointing out that he noticed the way she was looking at him just then. He's curious, but he's giving her an out by having left the question open ended enough for her to brush it off with a simple, "nothing."