1.   As The Light ran through its repertoire, she listened, eyebrows knitted, head cocked to one side.

2.   At the same time, he might be wondering if all this means playtime is over, and he may relay his apprehension to you by knitting his eyebrows.

3.   Further conversation had his eyebrows knitted almost in knots, and then finally he had an epiphany.

4.   I can still remember women and men screwing up their faces, knitting their eyebrows and concocting the most complex explanations imaginable.