It would be best to place the animal on its right side when performing CPR on a dog. This will ensure that the heart is in the correct position for chest compressions. In addition, it is essential to ensure that the animal's head and neck are straight with its body so it can breathe properly. Once the animal is in position, you can begin chest compressions by placing your hands on either side of the ribcage. The compression rate should be between 100-120 compressions per minute. Keep your arms straight and press down firmly but gently while counting out loud, so you know when to stop and start again. It is also essential to check for breathing after each set of 30 compressions to ensure oxygen gets into the lungs. If there is no response, you should continue CPR until help arrives or until the animal shows signs of life.