Hiding his lack of knowledge about what she is saying, he convinces her to let him stay.

Edward, disaffected, could only try to hide his lack of sympathy, or interest.

Anne said to Kevin, trying to hide her lack of enthusiasm.

I think many people hide their lack of originality behind film.

He had fooled her brother, hiding his lack of fortune to secure himself a wealthy bride.

"How kind," said the professor, not bothering to hide her lack of enthusiasm.

The middle classes show off their relative wealth (or hide their lack of it) with fashion.

"Fascinating," I said, not bothering to hide my lack of enthusiasm.

"Holly," I sighed, not bothering to hide my lack of interest, "where did it come from."