To be charming I think you need to learn the art of the schmooze. Basically telling people what they want to hear.

Charm comes from being your authentic self. Sounds cliche but that whole “you could be the best, most delicious apple, but there will still be people who don’t like apples” saying.

Be you, the whole of you. And you will attract and charm those who you like as well.

HIGHLY contextual on who your trying to charm and for what purpose.