Colin didn't really want to wait. In fact, he rather wished he could apparate already. Walking to Zach's wasn't really an issue, and he could get a cab if he really needed. It was just that all of that still took time. He knew being patient was important, but he couldn't help being impatient every so often. He made sure to bundle up enough to stay warm...without being too warm before making his way over to Zach's place. He pulled his hat down over his ears, chewing on his lip and keeping his eyes open for snatchers.
The minute he reached Zach's door, he knocked just the way he always did and wrapped his arms around his waist as he waited for him to come down. He could just open it, but...he didn't really feel like making it a point of interest that he had a wand. Being this paranoid was not doing him any good, but he was nervous.