Eat the mango any way you like but save the pit. Once you have gotten the pit out of the mango, clean it off first by eating the rest of the "meat" and the scrubbing it under a faucet. After you have dried the pit, pull out the little hairs on the side. Keep on pulling until they rip off. After lots of pulling, you will have a hole that you should use to open the shell with. After you have it open, pull out the seed. It might look a little ugly. The seed sizes can range from the size of a quarter to the size of your palm.