Great practice is Socrates Cafe, inspired by Chris Phillips' book by the same name. Tonight and every Tuesday at Trinity Church (across street from Brown Palace Hotel) at 7 p.m. Free and open to everyone. For more info about metro-Denver Socrates Cafes and optional rsvp, see www.Meetup.com/Socrates-Cafe-Society.
(Please share this with anyone you know who might be interested when they are staying in Denver, ok? Thanks!)