He slid his thumb across the screen to unlock it.
I can now tell her to go upstairs or down, out of doors or into the house, lock or unlock a door, take or bring objects, sit, stand, walk, run, lie, creep, roll, or climb.
Her hands fumbled with the keys three times before she managed to unlock the door.
I can unlock them remotely, and you can send her in for supplies.
She'd learned how to lock and unlock the doors and entered the conference room, locking it.