How do I give abdominal thrusts to a child who is choking?

Stand or kneel behind the child and wrap your arms around his or her waist. 

Locate the navel with one or two fingers of one hand. Make a fist with the other hand and place the thumb side against the middle of the child’s abdomen, just above the navel and well below the lower tip of the breastbone.

Grab your fist with your other hand and give quick, upward thrusts into the abdomen.