Short of having training, and a bit of the warnings prior to entering the arena, Dean's first instinct was definitely not to run directly towards the mob of people. He'd heard stories, that it was a complete blood bath, and he was still battling his morals to kill people in cold blood. So when the gong sounded, he ran away from the cornucopia, away from all the people, determined to get as far as he could before stopping and finding shelter.