If someone is personable, they are friendly and pleasant.
Being personable is a good thing. It means people like you and want to be around you.
Examples:
She is very personable and makes friends easily.
The new teacher is personable and kind to everyone.
He is so personable that everyone wants to talk to him.
The dog is not personable, but the cat is!
The alien was surprisingly personable and made friends with everyone on Earth.
Being personable is important for making new friends.