Final answer:
The rescuer should position themselves at the head of the person when using a pocket mask in order to provide rescue breaths.
Step-by-step explanation:
The rescuer positions himself or herself at the:
The rescuer should position themselves at the head of the person in need of assistance when using a pocket mask.
By positioning themselves at the head, the rescuer can easily provide rescue breaths by placing the mask over the person's nose and mouth.
Remember, it's important to ensure a tight seal between the mask and the person's face to effectively deliver rescue breaths.