When the Rebels meet Drew at the Circus camp, Glimmer's leggings are flesh colored instead of the usual blue. They are the correct color when she leaves.
Adam and Adora talk about practicing gymnastics together in the past, even though they didn't grow up together and are never able to spent much time together.
Adam tells Glimmer to 'wait over by the wagons' and she moves out of frame. After he turns round and says 'Time for He-Man' it cuts back to a wide angle, showing Glimmer still standing next to him - meaning she must have heard his words. He then holds aloft his magic sword and transforms, apparently still right in front of Glimmer.