Pronunciation of P and B

The lesson begins at about 0:42.
0:42 She talks about voiced and unvoiced “letters” (consonants).
2:01 She talks about the unvoiced P.
2:27 She talks about the shape of your mouth.
3:00 (dimples)
4:05 police, paper, picture, play, happy
5:00 She talks about contrasting P and B.
5:21 bay, box, baby, bank, blue
6:00 Lesson ends.