Speak read and write the English language
Ahem... You've never seen a cabbie whose response on "take me to Rockaways" is a dumbfounded look. That's when you open up a dictionary and say, "Mujhe Rockaway Beach aura Amstel le chahiyeh" which is met with a loud praise that you can speak Hindi very well.
Dinosaurs aren't extinct. They've just learned to hide in the trees.