Proverbs 26:28 (CSBBible)
A lying tongue hates those it crushes, and a flattering mouth causes ruin.

A compliment is an expression, by word or act, of regard, confidence, civility, or admiration; a flattering speech or attention; a ceremonious greeting to someone for something deserving.
Flattery is the act or practice of pleasing by artful commendation or compliments; adulation; false, insincere, or excessive praise. It is essentially sucking up to someone.
Compliments make both the giver and receiver feel good whilst flattery corrupts both the receiver and the giver.
Life is short and difficult and we all need something to make us feel good specifically and in life generally. We never know what anyone is going through because we have a generation of secret keepers and fake life to hide the hurting, broken, messed up things we’re facing.
They say flattery will either get you nowhere or everywhere! The motive of flattery is to get something out of someone that they wouldn’t give or do otherwise. Whilst compliments are positive praises given without an ulterior motive but in acknowledgement of a job well done amongst other things.
Compliments can be made on look, dressing, speech, and manners, you can complement just about anything. Another probable word for a compliment is encouragement. Compliments as a word of encouragement will get a person to do more, better or even attempt something new or difficult.
Whom did you turn to the last time you felt discouraged? We mustn’t allow the enemy to flatter us to the point of pride, lying tongue, false flattery injures according to Proverbs 26:28.
Some have mastered the art of flattery, using it to gain favour and followers to get them to do things for them.
I like complimenting people; it makes me feel good to say something nice to someone to put a smile on their faces: some accept the compliments graciously while some will either deny what I say or just shut me down. Some simple things like a nice dress/shirt, it looks good on you, goes a long way to make the receiver feel good and put a smile on their face. Some responses may be, thank you! Really! And other, this old thing, I don’t like it, don’t you think it’s too small, too big, or whatever else they can come up with. The point here is if we can’t take and accept a genuine compliment from people, how do we accept what the Holy Spirit says to us and about us? If we can’t accept the Lord’s praise and compliment now, how do we accept the final praise and ultimate compliment prepared for all saints that Matthew 25:23 describes?
Proverbs 12:18 states that words can be healing just as they can wound, unfortunately, false compliments or unnecessary flattery can put a dent in a person’s spirit, so be sure that you positively compliment those around you to bring the better out of them. The word you speak to people define you as well, learn to compliment yourself, then you can graciously accept compliments and give gracious and genuine compliments to others.
Affirm others with words of compliment and encourage them to keep doing the right, positive and godly things they are doing. Sometimes a smile is all you need to give. Flattery will get you nowhere, but gracious compliments may open doors.
Shalom