Jason made it a point to not let it be noticed that he had noticed a tail. Afterall, better the one that you knew than the one that you didn't. He could deal with the fellow before they left in the morning, but for now, it was best to continue his activities. He continued on to the next tavern in line, spent a few silver and asked the usual types of questions, he inquired about going wages on caravan guards and if any were moving up the river, "I miss the feel of a boat under my feet and even a river is water... hell, I'll work crew if there's decent pay for it."  He wanted to give his new friend the idea that he, and therefore, the party was investigating the barge option for going into the moores. He would tell everyone about the tail and the first two parties when he saw them. It was clear that the first two had made themselves standout, but had also been seen well before they had left the inn... as all of them were being observed... if he had a tail, odds were they all did.