Don't give someone maternity clothes if you're not sure if they're pregnant.
Don't give someone a fanny pack. Not if you like them.
Don't give someone a cactus. It sends the wrong message.
Don't give someone an eggplant.
Don't give underwear to someone you don't know very well, Especially if you do not know their size.
Don't give someone a book that is about a subject You and that person disagree about bitterly.
Don't give anyone a framed photo of yourself. If they wanted one, they would have asked you for it.
Don't give anyone a dog or cat. Or fish or bird. Or snake or iguana.
Don't give a woman anti-aging facial cream.
Don't give a man a nose hair trimmer. He might be grateful later, but most likely not in that moment.
Don't give self-help books, such as "How To Overcome Narcissism"
Don't give anyone deodorant, especially if they need it.
Don't give a toilet plunger, or a harpoon, or a jar of pickles, or cleaning supplies.
Don't give someone a gift certificate to the 99 cent store.
Don't give someone a sparkly Christmas sweater if they are over thirty years old.
Don't give a blender. They have one already.
Don't give anyone a t-shirt that says, "Never Give up."
Don't give someone a CD of you singing.