When you go to a circus or zoo, be on the lookout for the first elephant you see, because that is the one you should look at as you make your wish. (An Indian elephant, which has small ears, is good, but an African elephant, which has large ears that droop below the tusks, is even better; the African elephant's ears are shaped like Africa).
A white elephant, which is rare, is said to carry strong magic for making wishes come true, so be sure to make a good wish if you see a white elephant.