You can see more blooper reels and all other behind the scenes videos here
With the release of the Criminal Minds season 12 DVD, on September 5th, came an inside look on what goes on behind the scenes including a blooper reel!
AJ appeared in many behind the scenes videos on the DVD including a featurette on S12E02 "Sick Day". I will post the video when it becomes available.
With the release of a new blooper reel, comes reaction photos! Check out a full gallery of AJ reaction pics here