Challenge Marcus to video games.
From Create Your Own Story
"You're on!" You smirked at him defiantly. "If I win, you have to do whatever it takes to help me get this job."
"What if I win?"
"Then I'll let you cross-dress me however you want. Even if it looks stupid."
"Well, either way, it looks like I'm going to help you with this interview thing." He rubbed his rugged chin. "It's a win-win for you."
"Well duh!" You winked. "That's why I'm here, right?"
"I'm not going easy, I'll have you know." He smiled and sat down on the sofa in front of the game console.
"Oh, neither am I." You plopped down asides him and eagerly grabbed a game controller. Soon you guys are going at it.
It seems that he really wasn't kidding about going all out. He beat you in two straight matches, with a third one in his favor.