Nose to the wind

Coming up with sayings that have you use a body part to say keep alert or work hard such as:
Keep your nose to the grindstone
Keep your ear to the ground
Keep your eye on the ball
Keep your nose to the wind

Are there others?

Keep your finger on the pulse
Keep your foot on the gas
Keep your mind on the game

and still more, I'm sure.

Keep your eye on the ball
Shake a leg

Shoulder to the wheel.
Put your back into it.
Keep your eyes peeled.

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