Sirius reached out and put a hand on the man's shoulder, giving it a firm squeeze. It probably was smart considering that he still was testing out this potion. This was only the second time that he had used it, right? "Of course, best to lean towards caution in this case."
He smiled and gave the man a nod. "A chase I can definitely do. I'm a great chaser. I only ran into a tree about twice and that was in the beginning."