[namaemuta]

If you want to help him, there's something you can do: Try to practice with him those situations in which he struggles. Start with simple scenarios where you pretend to be someone else and give him feedback about what was weird, when you realized he was blocked, etc. All of this without criticizing or judging him. This way you create a safe environment for him to practice without feeling the pressure of a real conversation and with enough time to understand his own interactions and assimilate them.