See how sedately she is surveying the area, just moments before erupting into action.
Yes, that is my violinistically crucial left hand holding the ring, ready to release when necessary, while my right hand is operating a camera that usually requires two hands.
Take a look at Ziva's determination! I always let her "win" before too long, for both our sakes.
The last shot in this sequence maybe gives some idea of the movement and effort that is going on.
Later in the day, Ziva will be as loving as any creature, and even purrs somewhat like a cat.