In one shot when Jerry, George, Alton, and Elaine are leaving the lobby, George goes from wearing to not wearing his glasses.
Jerry is dressing for dinner with Elaine's father. He puts on a tie as he talks to George. For a while, Jerry's collar is askew and the tie visible in back. Suddenly, the collar is fixed and the tie no longer visible.
When Jerry is trying on the suede jacket at the store, he puts it on with the collar standing up while talking about the price. A second later the collar is down.
When Jerry (Jerry Seinfeld) and George (Jason Alexander) are in the bathroom, George dries his hands with a paper towel, despite not having washed them. However, as George is a quirky individual, it is more than likely that he sometimes may not wash his hands after using the bathroom, but he may need to wipe some "liquid" (other than water) off his hands.