Thanks Tawnya! I always appreciate your take on things.
I do want to clarify for those sharing their thoughts that I am not really wondering about how to help him. I do recognize that I cannot really do that.
My question is do I contact him, as I would a friend, with casual invitations to do things - a walk, a coffee, a movie - because depressed people are less inclined to make such invitations themselves, or do I stick to the DB LRT approach of contact only initiated by H?