Cro-Magnon grumbles something and, when his partner says "You're welcome" you understand that he said thank you. Cro-Magnon cashes three spade tricks (on the 3rd spade trick, your partner pitches the diamond Jack, promising the Ten) and you comment :

"They missed their 4-4 spade fit."

Cro-Magnon groans again and his partner translates :

"1NT making 2 is better than 2 spades making 2!"

Cro-Magnon then runs the heart 10 to your Jack. You shift to a small diamond, under AQxx. Dummy's king wins. Cro-Magnon now plays the 9 of heart from dummy, small by partner, small by Cro-Magnon and you DUCK also (you have seen Gabriel Chagas do those things before)!

A broad smile forms on Cro's short face: 8 tricks are there, +120, to beat all those Homo Sapiens with +110. Under his bushy eyebrows, you can see his little eyes full of joy.