cabin-gal.. you'll do fine.. don't be too nervous =) the assessors make the day really fun so that everyone feels at ease. they all went through the same thing at one stage so they know exactly how it feels.. just enjoy the day cos once you do get through it'll be lots of waiting (for most) and tough training after that!
good luck =)
and congrats to cabincrew88! hope to see you around at the training centre