What is fake smile?

A fake smile is a type of smile that is not genuine or sincere. People often use fake smiles to mask their true emotions or to hide their feelings, so it can be difficult to distinguish between a genuine and fake smile. A fake smile is usually produced when an individual activates only the muscles around the mouth and not the ones around the eyes. This results in a less-than-enthusiastic appearance, and the smile often fades quickly. People may use fake smiles in a variety of situations, including when they are trying to be polite, when they are uncomfortable, or when they are trying to deceive someone. However, fake smiles can often be perceived as insincere or untrustworthy, and they may not be effective in conveying the intended message.