Is this out of line to say/do to a co-worker, really need

is it possible he has an anxiety issue of sorts and those are his coping mechanisms perhaps??

I hear a quirky, sensory, or potentially undiagnosed on the spectrum adult in your description. I would leave it alone.

Do you guys use Microsoft Lync or any other software that would allow you to share your screen with him while he's at his own desk? Most individual training at my company is done this way because it's just easier than having someone look over your shoulder. Honestly, that would drive me nuts.

buy one of these for your desk then let him fidget with it.

I would use webex or share your screen for the training.

This is me as well. I get really irritated by movements and noises. I would feel bad for the guy, but it also would drive me batty. Most of the fidget ideas that people use also drive me crazy. At what point is one persons coping tool too much and an infringement on someone else?

Well, my DS has Asperger's, goes to school 1,300 miles from home, has an IQ so high they stopped measuring it when he was 12, was a junior by the end of his freshman year of undergrad work, will end up with a master's in engineering, is DEFINITELY a know-it-all, and has most of the quirks you mentioned.  We joke that there's a reason why they call is ASSberger's.      

He tries.  He really does.  But if he's nervous, the ticks come out.  I'm guessing that your co-worker's social skills aren't great.  Sitting in that close proximity to you must be really anxiety provoking for him.

I would really recommend some sort of screen sharing program as other's mentioned.  I know Apple products have it and I'm glad to see that PC products do as well.  I think you both would be a lot happier.  Even if you are sitting side by side, it's better than looking over each other's shoulders.

As pondrunner says, be kind and vent in private.  One thing that we do as a family is make DS wash his hands every time we see him pick his nose.  If you are a supervisor, I might have a talk with him in private about that one.  Say you've noticed it, it's a health hazard, and you are going to ask him to wash if you see it happening.  Hand sanitizer is good, too.  The taste lingers and gives a secondary feedback to an unconscious act.

Why would you not book a conference room for a transition like this? I would not be that close to a coworker for that long regardless of mannerisms.

For as annoying as it was, I also would not have touched him. That is weird too.

Regardless of personal traits, that is not an atmosphere conducive to learning. I conduct a lot of training on computer systems, it's a large part of my job. It just works better all the way around if we each have our own screens. There are free screen-sharing programs out there, or invest in WebEx or log me in. You will both be happier and he will learn more. He can still sit right beside you, but you can both have enough distance to not be in each other's personal space.

You are SOOOOO nice!!!!!!!!!!

I could handle everything but the nose and nails. Possibly even the nose, but never the nails.

I think you handled it so well. Honestly, I've had my biggest successes taking people out to lunch and talking with them. I know that in this situation lunch sounds absolutely horrific, but people relax a lot then. BE HONEST. No one else will be.

I feel sorry for him and don't know if anything you say will or is able to make a difference, but I think you should try. Someone should be able to stop themselves from biting their nails, right? And picking their nose?

give it to him,don't keep it.

Do you line in Georgia? Sounds like someone I know!!