Santa's helper at a Family Giving Tree event!
Also known as Energizers, Openers, and even Deinhibitizers, many activities help people feel comfortable and get to know each other in ways that can enhance all future collaboration.
They are commonly used during the first stages of team development (e.g., at the introductory meeting or class) or preceding a group process (e.g., to start off each gathering)- yet also try them whenever people need re-energizing, or when bringing in new members.
You might also be interested in Icebreakers for Online Team Building.
Isn't this winter a prime time for to break the ice and warm up together?