Smile at strangers.

Meaning: This means to be friendly to people you do not know by smiling at them. It's like saying, Greet people you do not know with a friendly smile.

Choice of Words: Smile means to turn up the corners of your mouth in an expression of pleasure, amusement, or kindness. At is a preposition used to indicate direction or location. Strangers are people whom you do not know or have not met before. Here, 'smile at strangers' means to show kindness to people you do not know by smiling at them.

Alternative Expressions

Related Expressions