For some reason, there's a difference between telling the truth, and not telling the truth. Which I think silly. So bluff is now for lying and telling the truth: * Same as before. * The player (or whoever is speaking) makes a bluff check with their modifiers and the situational modifiers, as normal. * Same as before, the person you are trying to convince makes a d20 roll, and subtracts their sense motive modifiers (Wisdom modifier, skill modifier, misc modifiers) from the roll result. * If your bluff check beats their (probably negatively) modified d20 roll, then they believe you. * The speaker's ability to be convincing (The speaker's bluff mods). * The situation and the believability of the claim. (mods from the way that bluff works) * The ability of the rec