Also, did you know that by smiling and being nice to people you can add chemicals into your body that make you happy?
This is true, and why it's common to tell someone who looks miserable to smile - it really is a two way thing, emotions affect expressions and expressions affect emotions.
These days of course a person is likely to take offence, thereby making themselves more miserable than they already are, or maybe feeling righteously offended is as close to happiness as they ever get, in which case the desired outcome has been achieved anyway!
This is true, and why it's common to tell someone who looks miserable to smile - it really is a two way thing, emotions affect expressions and expressions affect emotions.
https://www.theatlantic.com/health/archive/2012/07/study-for...
These days of course a person is likely to take offence, thereby making themselves more miserable than they already are, or maybe feeling righteously offended is as close to happiness as they ever get, in which case the desired outcome has been achieved anyway!