Complex sentence: In one sketch, Mr. Tyzik's girlfriend, Mischa (played by Kevin McDonald), came over and taught him the amusement of putting your thumb over the head of a person in your eye sight and pretending that the person is not there.
Split into simpler sentences: In one sketch, Mr. Tyzik's girlfriend, Mischa (played by Kevin McDonald), came over. Then she taught him the amusement of putting your thumb over the head of a person in your eye sight and pretending that the person is not there.