Kenshin tried his best to blend in with the crowd. Sometimes the best way to fit in is to stand out. Kenshin had a lot of wisdom like that. Street smarts. So when he found a group of bachelors making their way down the street bar hopping, Kenshin leisurely added himself to the crew and they were far too gone to be any the wiser. They just knew that someone else was buying drinks so they were happy. Kenshin roared when they laughed and kept his eyes out for anyone who would cause any trouble. He sipped his sake delicately knowing that he could not actually drink with them. He was on duty and a shinobi who was tipsy on duty would be disciplined.