dissimulating

The game of dissimulating feelings is almost easiest before a numerous audience; it is rarely possible in a tte--tte.

Are you not dissimulating some of your happiness to keep up my spirits and to prevent me from rushing back to you at all hazards?

Before she thought, she made some reply for the sake of dissimulating her embarrassment.

Or were they perhaps dissimulating as she herself was trying with poor success to do?

"Don't forget, now," a plainly dissimulating laugh was heard.