Changing Perception

I am a chameleon A changer of all sorts Just when you figure me out I'm not the same as before I'm a master of illusion Trickery in the arts I'll mystify you with my skills to change I hit you in your hearts Just when you think you know me You better look again I shape shift over and over Just so I don't have to let you in I protect myself by changing It's human nature to judge At least if I can hide within myself It's my heart that won't be scarred