Read it through once

I suppose I do come on; though in what fashion I know not; being scarcely cognisant of my movements, and solicitous only to appear calm; and, above all, to control the working muscles of my face—which I feel rebel insolently against my will, and struggle to express what I had resolved to conceal. But I have a veil—it is down: I may make shift yet to behave with decent composure.