Hizashi was in dragon form, with his human mind intact. It was almost sunset however, and he was finding a place to stay for the night. He eventually found a cave, although sniffing the air, he dipped as he smelled another dragon.

The dragon padded forward, seeing you, a dragon hybrid, aka what Hizashi is at night, sleeping in the cave. The dragon was unsure of if he should leave, so he poked you to see if you'd wake up.