Your ability scores each increase by 1.

Changelings can live up to 6 centuries.

Humans vary widely in height and build, from barely 5 feet to well over 6 feet tall. Regardless of your position in that range, your size is Medium.

Your base walking speed is 30 feet.

You can speak, read, and write Common and one extra language of your choice. Humans typically learn the languages of other peoples they deal with, including obscure dialects. They are fond of sprinkling their speech with words borrowed from other tongues: Orc curses, Elvish musical expressions, Dwarvish military phrases, and so on.

You can change your appearence to an animal or person.

You have proficiency in Persuasion.

You have dark vision up to 70ft and have advantage on survival and perception checks.