I tried to talk to them, but the language tripped me up at every turn, and the right words never would come when they were wanted.
Besides, I felt uneasy without knowing exactly why.

I could not keep from watching Dalrymple and Suzette.

I could not help noticing how closely he held her; how he never ceased talking to her; and how the smiles and blushes chased each other over her pretty face.

That I should have wit enough to observe these things proved that my education was progressing rapidly; but then, to be sure, I was studying under an accomplished teacher.
They danced for a long time.

So long, that Andre became uneasy, and my available French was quite exhausted.