(Well, other than the obvious answer: mathmatically!) I've looked through everything I can find, and nowhere have I seen it definitively explained, but: When your characters go up in level, do you add their constitution bonus to the HP per level they already get standard? If so, do you add the constitution bonus by itself, or do you add the bonus + 1/2 per level number? Up to this point, I've been giving my players the standard class amount + the straight constitution bonus amount (no + 1/2 level). How do you guys handle it?