What is the short story "My Face" by Robert Benchley about?

I am fascinated by my own personal appearance", author finds himself looking like a different person everyday, admits the glances he steals in the mirror or in reflective windows, admits he finds himself in photographs before others and focuses on those areas- "try as I will to pass it by casually, my eyes rivet themselves on that corner of the group in which I am standing", "but day in and day out, in mirror or in photograph, there is always that slight shock of surprise which, although unpleasant, lends a tang to the adventure of peeking [at my reflection]