The phrase "tell a thing or two" refers to the act of scolding, chastising, or reprimanding someone sternly. Some antonyms for this phrase include complimenting, praising, and commending someone. Instead of scolding, one can choose to offer positive feedback and encouragement to motivate and uplift the person. Other antonyms include forgiving, condoning, and pardoning, which suggest that instead of reprimanding, one can choose to show mercy and understanding towards the other person. Choosing to use antonyms of "telling a thing or two" can lead to more positive interactions and strengthen relationships between individuals.