How do you know if you are human or a machine?

Upper class man compliments fighters on a magnificent duel

a collection of assorted shiny marbles

Four eyed alien loves people

A talking owl plays with a red ball

Goblin finds maggots delicious

House receives a Valentines card

Pacman in a beret displeased by noise

A monster forced into re-employment

three numbers and an orange box

Someone with long curly hair and a green house

A cat can has Cheezburger