As of today's date, the only meet and greet scheduled for December is during Cirque Week:
http://www.cirquedusoleil.com/en/pro...ek/events.aspx
Criss' Believe show is closed December 11-26 so it's
unlikely that a M & G will be scheduled near Christmas.
If there are any other meet and greets or signings planned for December, the information will be posted on the forum.