Wait a second. [She holds up a hand, eyeing him skeptically. Guess he doesn't know what a lei is.]

This necklace? [Her own is tapped with her index finger. It's called a lei. I was trying to be funny! Like a play on words sort of thing. But I'm guessin' it's funnier when Dignity isn't your middle name.

[Or when you have the right context to get a joke. It's not exactly fair to tease just because he didn't have access to the same schema of vocabulary as her. So she reaches over to awkwardly pat at his arm like it's an incredibly reassuring gesture.]