Eyes
As James sat with Sirius, Remus, and that one kid who's name he couldn't quite remember, he couldn't help but smirk. This was how Hogwarts would be, he decided. He and his friends would rule, and the rest of the students would worship from afar, whishing they were aloud in that almighty clique. He'd walk around with his perfect girlfriend, who would be popular, and quiet, and do anything he asked. He wasn't quite sure what color her eyes would be, as long as they weren't green. That was, after all, a nasty slytherin color-
"You'd better be in Slytherin."
"Slytherin?" James asked, finally realizing there was other people in the compartment, "Who wants to be in Slytherin? I think I'd leave, wouldn't you?" James turned to Sirius, waiting for backup.
"My whole family have been in Slytherin."
"Blimey," James said, shocked, "and I thought you seemed all right!"
Sirius grinned. "Maybe I'll break the tradition." and where are you heading, if you've got the choice?"
"Gryffindor, where dwell the brave at heart! Like my dad." At this point, the greasy haired kid made a noise. "Got a problem with that?" James asked, eyes narrowed.
"No," said the kid, sneering, "If you'd rather be brawny then brainy…"
"Where're you hoping to go, seeing as your neither?" asked Sirius, jumping to James' defense.
And then he saw her. The girl stood up and glared at him, her green eyes filled with loathing. She said something, but James missed it, seeing as he was still lost in her eyes. After she had walked out, he said in a daze, "Green."
"What mate?" asked Sirius, looking at him in confusion.
"She'll definitely have green eyes." he said more to himself then them. "And red hair."