On the show, Ullman has a yoga charater where she has feet right under her chin. At the very last second of the sketch she begins to tickle the feet. Also, If you have on demand through time warner cable, the feature 'tracey: on set' there is a short clip where she is tickling the feet under her chin and is red faced with laugter, indicating that she is being tickled back. Might be one to watch for on the DVD as a special behind the scenes thing.