Answer: Stand up for the girls
Step-by-step explanation:
In the short story, "A&P " by John Updike, Sammy works in a shop where a couple of girls come to shop in their bathing suits. His manager on seeing this, chastises the girls and tells them that they should dress more appropriately and that if they came to the shop again dressed in such a manner they wouldn't be allowed in.
Sammy liked one of the girls and so decided to stand up for her and the others by quitting his job in the hope that the girl he liked would be impressed enough to date him.