My fourth day in America

Today is my fourth day in America last night when I play roller skate I fall many timer,r because I practice rollerblade and ice skate more than roller skate.Today I go to zoo they have a Wolfsburg ,black bear ,turtul ,some kind of birds then I see a coin machine to change penney to coin like the zoo coin they said put two qurter and one penny so i put it but the coin stuck ! I don't know what to do. Then I go to library and eat lunch