[Pan Narrans]

Arguments in favour of guessing Plate now:
- None of this being behind on the first turn. Yay!
- Have the extra guess available at a later turn. Whee!

Further considerations:
- If Plate is wrong, we end our turn in any case.
- If it's a neutral word, it's much like passing, except that Plate is known to all to be a neutral word.

Arguments against guessing Plate now:
- If it's our opponents' word, we're even further behind. Bad!
- If it's the assassin word, we lose. Very bad!

All things considered I now agree with Jerome's reasoning that passing is the better option.