(i) His thoughts when he looks into the mirror
(ii) His thoughts when the snake is coiled around his arm

Explanation

(i) He is appreciating his appearance and takes high pride in himself when he looks into the mirror. And, to look more handsome he decides to grow a thin moustache, shave daily and keep a smile on his face always.
(ii) When the snake has coiled itself around his arm, he has become motionless. He keeps sitting there holding his breath in a calm position. He smiles at his foolishness and his ignorant behaviour towards the noise he has heard thrice. He is a doctor but does not have any medicines in his room to cure himself if the snake bites him.