Give 2 rescue breaths for adults by?

To give two rescue breaths for adults, follow these steps:

1. Tilt the person's head back and lift the chin to open the airway.

2. Pinch the person's nose closed with your thumb and index finger to create a seal.

3. Take a deep breath and place your mouth completely over the person's mouth, creating an airtight seal.

4. Blow into the person's mouth for about 1 second, or until their chest rises.

5. Remove your mouth from the person's mouth and allow them to exhale passively.

6. Repeat steps 2-5 for the second rescue breath.