Being thoughtful and kind
I think there are different types of charm. There's the narcissistic, impulsive, pretentious type, and there's the friendly, humble, serene type. And probably many other variations of these, as well as other kinds of charm. Everyone has their own type of charm I'm sure. Just that some generally appeal to more than others.
Someone who may not agree with me, but is open minded enough to listen.
Cozy words ... good perfume ... N smile .... :-))