The enemy of a good compliment is vagueness. "You’re so nice" is forgettable. "I love how you always ask my kids about their school plays—you make them feel important" is memorable.
Tell your partner that the way they wrapped the presents looks like modern art. Tell your colleague that their patience with the end-of-year deadlines is legendary. Tell your parent that the ornament they saved from your childhood makes you feel safe. compliments for the season