Keith had been waiting for Veronica and the man who had introduced himself as Steve while also keeping his eyes open for anything that might or might not be a threat. There was still a large part of the man who thought Veronica was full of it or messing with him, Keith did make sure he was aware of his surroundings.
Keith was certain that all was okay when someone approached him, it was only in the last seconds before the person, or whatever it was, lunged at him that he realized that he was in trouble. Struggling to keep the person or creature at bay Keith realized just how long it had been since he had been in fighting shape. The only thing that kept him from giving in was the thought of Veronica finding him dead and he could handle that thought.