Personally I say make a PS, don't mention what you are eating and have fun! Until BB has a published required per person minimum, I would go and chose what I want to eat and not tell anyone except the waiter what that is.
For a cookie boat...that's worth it! That's what we're doing this time around too. I am just not too impressed on the food, just the ambiance of the restaurant. Don't get me wrong it's been good, but for the price, I'd rather eat at Carnation Care...that has become my favorite DL restaurant.
Ah yes, the good ol' "Oh, what a great menu selection! Let's see here. What do you want to get? I'm not that hungry. How about a desert? The cookie boat looks good. Let's get that." approach. Works every time.