Marcus wasn't sure what he was supposed to wear either. He finally decided that he should just stick to black pants and a red dress shirt, top button undone so he didn't look like too much of an eager dork. He had rolled his sleeves up on the way over, realizing it was a little warm for the t-shirt under the long-sleeved shirt.
When Marcus came in her spotted Penny right away, seeing as she was wearing white. "Uh... am I late?" he asked as he approached the table.