Peek-a-boo

Peek-a-boo (or peekaboo) is a form of play often played with an infant. To play, one hides their face, pops back into the view of the other, and says "peek-a-boo!", sometimes followed by "I see you!." Peek-a-boo uses a basic joke-like structure of surprise, balanced with expectation. The game is thought by developmental psychologists to demonstrate an infant's inability to understand object permanence. 
==Appearances==
*Oscar and Georgie play peek-a-boo in Episode 1178.
*Elmo and Shelley the Turtle play peek-a-boo in Episode 2300.
*Telly and Baby Natasha play peek-a-boo in Episode 2475.
*Shelley and Barkley play peek-a-boo in Episode 2622.
*Oscar and Gabi play peek-a-boo in Episode 2681.
*Oscar and Irvine play peek-a-boo in Episode 2737.
*Maria plays peek-a-boo with Baby Natasha and Oscar plays peek-a-boo with Irvine in Episode 2851.
*Picabo Street and Elmo play peek-a-boo in a celebrity insert in season 26 . In another insert, Telly Monster meets Street in a "Monster on the Spot" segment, though he thinks he's looking for a location called "Peek-a-Boo Street." 
*Humphrey plays an extended game of peek-a-boo with Baby Natasha in Episode 3613.
*Baby Natasha plays peek-a-boo in Episode 3643.
*Big Bird remembers playing peek-a-boo with Radar in Episode 3884.
*Humphrey and Baby Natasha play peek-a-boo in Episode 3871.
*Big Bird and Baby Natasha play peek-a-boo in Episode 4020.
*Big Bird and Snuffy imagine themselves playing peek-a-boo in Episode 4132.
*Abby Cadabby plays peek-a-boo with Marco in Episode 4145.
*Ralphie plays peek-a-boo in Episode 4155.
*Peter Piper plays peek-a-boo in Episode 4511.
*Sweetiekins attempts to start a game of "Worm Peek-a-boo" with Oscar in Episode 4701.
*Mr. Noodle's brother Mr. Noodle plays peek-a-boo with Baby Natasha in the 2000 episode Elmo's World: Babies.
*In an episode of Play with Me Sesame, Ernie instructs the viewer for them to play peek-a-boo with Ernestine.
*In Sesame Beginnings: Beginning Together, Brandy plays peek-a-boo with her daughter, Sy'rai. Later, Prairie Dawn's Mom makes the game a fun way for Baby Prairie to get dressed.
*Mr. Noodle's brother, Mr. Noodle, comes up with peek-a-boo as a game he could play with a baby in the 2017 episode Elmo's World: Babies.
*The "Abby's Advice" segment on becoming a big sibling includes the advice of playing games like pee-a-boo with your younger sibling.
*In "My Sesame Music: Games," Grover plays one of his favorite games - peek-a-boo.
==Books==
*Muppet Babies: Let's Play Peek-A-Boo!
*Sesame Street Babies: Peek-a-Boo!
*Peek-a-boo, Lizzy Lou!
*Sesame Beginnings: Peekaboo! I See You!
*Sesame Street: Peekaboo, Elmo!
*Where's Elmo?: A Peek-a-boo Book
*Where Is Elmo?: A Wiggle & Giggle Peekaboo Book
==Videos==
*Jim Henson's Play-Along Video: Peek-A-Boo: A Big Surprise for Little People
*See Amazing in All Children "Play Peek-A-Boo" resource video 
*"Peek-A-Boo with Elmo" web video 
==Merchandise==
*Peekaboo Cookie Monster (Playskool)
*Peek-a-Boo Elmo (Gund)
*Peek-a-Boo Elmo (Headstart)
*Peek-a-Boo Big Bird (Tyco)
*Peek-a-Boo Ernie (Tyco)
*Musical Peek-a-Boo Big Bird (Illco)
*Musical Peek-a-Boo Ernie (Illco)
*Oscar's Trash Can, with peek-a-boo action (Illco)
*Playtime Big Bird (Tyco)
*Pop-Up Pals (Fisher-Price)
==Notes==
*Puppyduck tries to catch a runaway creature called a "Peekaboo" in the Mopatop's Shop episode "Fuzzle Gump."
==See also==
*Pattycake
Category:Joke References