It is rude to criticize someone's gift to you
Judy is having a birthday party for herself and opening up gifts from guests.
Judy wants to see everything she received.
Judy opens each gift and thanks each person individually as she enjoys getting gifts.
Judy opens a gift she isn't particularly fond of a makes a crack about it before tossing it to the side to renew focus on the next gift.
Judy is seen as grateful and caring by her birthday guests.
Judy is seen as selfish and ungrateful for her commentary on the gift.