Her mother pretended not to notice and walked out to the car with him.

She did a good job of pretending not to notice.

She kept back a twenty, and I pretended not to notice.

His face had been red the whole time, but she pretended not to notice.

Pretending to notice me for the first time, he shot to his feet and stuck out a hand.

She pretended not to notice that Paul had gone out of the room.

The other people at my table were all pretending not to notice.

He pretended not to notice, then moved back to her ear.

The others turned to look at him, and he pretended not to notice.

He offered her a hand, which she pretended not to notice.