Wear something athletic to Marcus's place.
From Create Your Own Story
Something athletic might be nice. Much like you, Marcus is not a straight-up geek that lacks any social life. In fact, he played intramural sports throughout college to stay in shape. Maybe you can have some recreational fun together. You dug in your closet and dug up just what you were looking for.
Quickly stripping down to your underwear, you throw on the baseball tee that your dad bought you as a pre-teen, a bit tight and showing a bit of your bellybutton, but otherwise comfortable. A pair of white sport shorts slides nicely up your legs and tightly hugs your hip. The red-and-white striped knee-high socks also fit nicely.
"Perfect!" You grinned to yourself while standing in front of the mirror. With this attire, you're ready for anything.