Ok so I am 22 years old and it seems like there are different versions of "Concentration" we all know. My big sister taught me and my other sister this game. But I'm from Orlando, Fl and this the game we grew up playing:

"HANDS UP TO 85'(CLAP CLAP) GONNA GET (CLAP CLAP)NAMES OF(CLAP CLAP) (PEOPLE)(CLAP CLAP)NO ONE-A-PIECE (CLAP CLAP) NO TWO-A-PIECE (CLAP CLAP) NO HESITATION...(CLAP CLAP) NO DEMONSTRATION (CLAP CLAP)SO LETS GO (CLAP CLAP)SO LETS GO (CLAP CLAP)STARTING WITH(CLAP CLAP) LESLIE (CLAP CLAP) ENDING WITH (CLAP CLAP)JAMIE (CLAP CLAP)SO LETS GO (CLAP CLAP) SO LETS GO (CLAP CLAP)...AND THEN I WOULD START AND WE'D KEEP GOING UNTIL SOMEONE REPEATED A NAME, HESITATED, OR MESSED UP. HAHA I'M 22 AND STILL LOVE THIS GAME! I JUST MADE MY BOYFRIEND PLAY WITH ME YESTERDAY! =) Usually, the subject was people's names or cars, or food, etc....and after each round, the number of things you had to name went up.