Hohenheim: How do you tell the Homunculus apart from its host?

Ed: Hang on

Ed, turning to yell at Greeling: YO CAN YOU DO THE FERGALICIOUS RAP

Greed: Wait wh

Ling, interrupting him mid-sentence: ALL THE TIME I TURN AROUND BROTHERS GATHER ROUND ALWAYS LOOKING AT ME UP AND DOWN LOOKING AT MY UNH