"He knows I'm here..." Duncan thought as he saw the man looking around. It was now that Duncan needed to make a move. He could flee, shoot, stand his ground, or meet them. Giving the situation, if he fled then they might give chase. To shoot would probably be a bad idea. He was outnumbered and out gunned. Sure he had the high ground, but that was only going to do him so much good. To stand his ground wasn't a bad idea. Waiting it out might be the best thing. Duncan hoped maybe they would just leave and forget about it, and if that was the case, he would just give up on following them. They were an interesting bunch, but he wasn't going to get shot over observing them. Lastly, he could just go meet them. It crossed his mind, being in a group instead of all alone.
"Maybe..." He thought. Duncan figured if they did spot him, he would surrender see how things go. Worse case...they try to shoot him and a death by them would be better then being zombie food.