I can't find any existence of this Seinfeld episode:
George is interested in woman. George isn't confident in approaching and saying the right words to woman so Jerry offers his help and unveils his plan.
George and Jerry attend party. Woman of interest is there. George wears an earpiece listening device with Jerry on the other end covertly directing him on what to say to woman.
After initial exchange between George and woman, Jerry instructs George "and walk away" at the end of the conversation. George misunderstands and says to the woman, "and walk away."
Any help in finding this episode would be greatly appreciated!