A small trick that might help the starting Draw Something players. When you guessed the word of your opponent and you are able to choose your new word ( from one coin, two coins or three coins. ) When you are not happy with the three words you can close the application (on the iPhone you can do this with leaving the application, then double clicking on the main button, and then if you hold your finger down on the ‘draw something’ application you can close it). After closing it and restarting it you got three new words to choose from!!
See the image for the menu that will appear on the iPhone.