This joke isn't going to go far, so he'll cave sooner than later. With a goofy smile, "Yeah.. you got me quick on that one. Hah, nice to meet you informally, finally, and glad to see another join the ranks who knows how to kick it."

Not that this is a thing that's hard to find, but living in the moment like this.. you never know. "Hope you've been practicing." By this he's referring to the sense of both musical and recreational activities of choice, all displayed before them.