the.com/flatter
Praise with an agenda, applause that wants something back.
means To compliment someone excessively or insincerely, usually to win favor or advantage.
from From Old French flater, to stroke or smooth down — like petting an animal, but with words and ulterior motives.
Mirror trickPhotos flatter by reversing the face you expect.
Tailored fitClothes flatter by faking proportions you wish you had.
Ancient warningAesop's fox flattered the crow out of cheese.