Are you a cameleon?
That's one of these.
This amazing reptile change change colour to camouflage itself and merge into the background.
A person who can adapt easily and play many roles can also be described as a cameleon. Some people find that they even change their accents according to who they are with. This is a very useful skill with English as it's spoken with so many accents - like this! This lady certainly is a cameleon!