“示意的”用英语怎么说？

他说到这里就停下来了,转动着示意的大眼睛望着柯帕乌.Here he paused and rolled a large and informing eye on Cowperwood.汽车上已逐渐以信号灯显示取代以手示意的作法.Signal lights on cars have edged out hand signals....