Noah observed every expression on Tim's face, not letting go even a minute change. He wanted to see what he had in mind and whether there were any malicious intentions running in his brain. Now was a good time for him to execute his plans if he was just acting in front of him, given that he had found out a lot of interesting stuff right now, especially about Ivy who was responsible for drowning all of Jared's wicked plans.
If it was all Jared's new attempts at tricking Noah by sending Tim to him, then Noah would find out now when Tim attempted to contact Jared by hook or by crook to relay the message. Of course, in this tactic of his nobody would get hurt, especially Ivy and he would make sure of it. He had just used her and her work as bait so that he could clarify the doubts he had about Tim. He wanted to make sure that the man was not playing with him and was not having any bad intentions.