Here is Emma, Mike and Barny doing precisely that outside of Clwb Ifor Bach (pre-soundcheck, post-load-in, you get the drift).
Cardiff was especially twinkly and Christmassy that night, maybe it was because we were playing a Christmas gig. We went to a lovely pub around the corner for a proper Welsh dinner and had a jolly good time.
We would go back to Cardiff whenever. What a lovely city!