Charlie is wearing a blue smock while Esmeralda cuts his hair. The clip that holds the smock in place keeps changing positions.
After Charlie simulates using a Shake Weight with the cocktail shaker, he sits down at the kitchen table and puts the capped shaker down and pulls it toward the table's edge. The camera follows Alan as he crosses the kitchen and Charlie is out of the scene for a split-second, but after the cut, he comes back into view, holding an uncapped shaker.