I can fancy what a wonderful power he must have over his patients.

He has a curious habit of looking one straight in the face, as if trying to read one's thoughts.

He tries this on very much with me, but I flatter myself he has got a tough nut to crack.

I know that from my glass.
Do you ever try to read your own face?
I do, and I can tell you it is not a bad study, and gives you more trouble than you can well fancy if you have never tried it.
He says that I afford him a curious psychological study, and I humbly think I do.

I do not, as you know, take sufficient interest in dress to be able to describe the new fashions.
Dress is a bore.