Tried to hug me

Keith was at the gym last night when I was. I was getting ready to leave and had just finished working out on the shoulder press when in the corner of my eye I see someone walking up to me really fast. I think how strange that was since we were in a gym and who follows/comes up on someone like that? I turn around and there he was there with his arms out like he wanted to hug me.

I turned around, gave him a look of skepticism, then he had a huge grin on his face, and said hi. He said he wanted to either poke me or hug me. I replied, "in a gym?" He smiled and shook his head yes. I said "oh." He said he was there to work out, had a bad day since someone at Staples pissed him off, had a nephew coming into town next week, had been struggling at work, and a dozen other things. I just replied "ok.........." I told him I had to go. He asked where. I said "away" and he gave me a frown as I walked away.

The more I am around him the more agitated he makes me. I said maybe 5 words...