Click the green flag. When you start, drag the little stick figure around the map to play, Put him on the little points on countries. Try to touch those little points with the limbs so the text boxes don't touch another point. Click the right arrow to see more countries. Click those countries for more facts. Click more facts on the top to see more facts about countries. After you click more facts and finish reading all of them, click the green flag again if you want to play the main part a little more.
Sorry if any of these facts are wrong. If you want a country to be added to the game, comment and ask. I might add it.