An easy test to locate a robot out of a group of humans is to play any version of Party in the USA by Myley Cyrus and notice which "humans" are dancing to the beat. Singing Lil Wayne is another strong indicator of robot characteristics although it can sometimes be a momentary lapse of judgment for humans.
Every year Robots attempt to recruit humans to join their army, and every year the human population decreases, because once they successfully program your robot capabilities, your past human traits disappear.
"I love how much my sperrys match my lacoste polo" -Robot
"Pi Phi OR DIE" -Robot
"I had so much fun at the Maroon 5 concert last night!" - Robot