Come for the cable cars, stay for the puzzles.
Greg is a big puzzle enthusiast. So much so that he generally carries around a cryptic crossword puzzle or two in his pocket, just in case he has some downtime or a long elevator ride.
Matthew is a klezmer fiddler, composer, letterboxer, printmaker, origami wizard, cryptic mixologist, beard proponent, and (natch) puzzle designer. If you’re perplexed by the abundance of Puzzled Pint Matthews, this one also goes by @SteinViolin.