Otherwise nice coworker feels it necessary to:
*Speak as loudly and sharply as possible
*Get involved in conversation in the room he's not involved in, and keeps chiming in even if he is ignored.
*One loud, jarring cough several times a minute to clear his throat.
*The loudest snorting and swallowing I have ever heard
*Banging the keyboard so loud the desk shakes
*Tapping his chair, desk, head repeatedly if nervous
*Clicking his pin a jillion times
I feel bad saying this because he's a good guy, but yesterday I thought I was going to go crazy. I had a headache and my desk is literally right next to his.