One of the Jamaican runners in the 100 metres the other night kept doing his little routine of pointing to his eyes then to the finish line everytime the camera was on him, it was very funny when he finished last, also the Norway bloke in the 1500m final giving it the "number one" hand gesture all the time before the race, I think he finished 5th :-)It's now the norm to introduce each athlete individually before the race. Some of the gesture they make when the camera focuses on them are embarrassing.
ps stopping the introductions would probably reduce the games by about 5 days.