Go back to Nicholas's IPA Machine 
p
Words with the IPA p sound
poppy, prepare, pen, apple, puppy, pig, parrot, airport, Paris, post, price, prize, simple,
protocol, proper, preparation, support, superb, personal, person, people, transport
Compare p and b
Your lips are in the same position for the b sound and the p sound. The difference is that a p sound is more explosive. You can try this with a lighted candle. When you make a p sound, the candle flame should move more. Or you can hold a piece of tissue paper in front of your mouth. It works!