Shake your unopened bottle until the bottle is firm.
Place bottle in the freezer for an hour to an hour in a half depending on how cold it is already. There should be no ice in the bottle when you pull it out. if there is, you left it in the freezer too long, and need to let it thaw out a bit.
Open bottle to release pressure then close it and shake it a bit more. Either pour into your favorite cup, or simply put a straw into the bottle, and enjoy!