Answer:
You can see nothing else, When you look in my face, I will look you in the eye, And I will never lie.
It can cause deflation of tires when dropped from the rear of spy cars.
Has feathers but can't fly. Rests on legs but can't walk.
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you.
What has a single eye but cannot see?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?