Sitting down, he assumed an expression of polite interest, and immediately began to think about something else.

She threw up her arms, assuming an expression of wonder.

But then he shook his head as if to clear it and assumed an expression of concentration.

Finally, he assumed a serious expression and turned toward Eleni.

She pulled herself back to the point, assuming once more an expression of sobriety.

I had an inspiration, and assumed an expression of disgust.

He paused and his features assumed an expression of deep gravity.

Trying to assume a relaxed expression, he leaned back in the chair.

Then she allowed her face to assume an expression of amused irony.

He spread his arms and looked down at himself, assuming an expression of distaste.