When Barney and John are Split they are two totally Different People, not many people can even tell the difference between them. John is more logical and speaks total english and he's a head taller than Barney, His eyes are Green also. Barney is hyper and Has dark purple eyes, he's fun to be around....but he starts feeling something for John..and he doesn't understand it....but John feels the same( kinda like Morality and Logic hope you enjoy)