Answer: Adjust to context if needed, but this is what I came up with. Hopefully it helps.
Step-by-step explanation:
I scanned him apprehensively. My eyes met his small but edifying eyes; he had large, alert ears. As he beamed, I could practically see his paper white teeth sparkle. His hair was precisely combed but wore no socks with his shoes. His trousers seemed too short and his shirt too large. I heard his warm voice as he greeted us then, I knew, he was our new science teacher.