Treat him like you would anyone else, let him take his time speaking, don't bring up the stutter unless he does, and try to subtly reassure him that you don't mind his stutter, like you've been doing with this: >and nodded frequently to show that I am still engaged with what he's saying. I'm not sure if you should encourage him to speak or not because that heavily depends on the person, but please don't put him on the spot without talking to him about it first. Thank you for this post though it brought a smile to my face as a fellow stutterer. I hope everything goes well!