The nature of his interactions

It was not the nature of the prophet of God to talk indecently; nor did he engage himself in the use of vulgar language, neither did he shout in the markets (which is against dignity). He did not avenge a bad deed with a bad one, but forgave it, and thereafter never mentioned it. Tirmidhi

Love and Mercy

"Whoever shows no mercy to people, Allah will not show mercy to him" Muslim

"By the One in whose hand is my soul, none of you shall enter paradise until you believe, and none of you will believe until you love each other..." Muslim