Push Open
You use your fingers when you're in private to use an arrow to push open things.
You're in private in your own room, no one else is around. Now you wrap your fingers around this big arrow, and you push open your door, your curtains, your windows. It's weird, but you really enjoy this.
あい
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Your favorite thing to push open is your own eye (あい). You take the arrow into your fingers and gently push each lid open until you can see.
Picture the arrow in your hands. You're facing a mirror, but you can't see because you're about to push open your eyes. The anticipation is killing you, push them open now!