Just tell them how you want it, whether you want it clear,
matte, or privacy.
Clear is clear, fingerprints and such are obvious, matte makes
your screen look blurry, but you can't see fingerprints, privacy,
nope too pricey even for me. And ask them to apply for you, coz you
suck.
my brother told me the exact same thing - "ask them to apply for
u!" 
i want a rainbow casing!!!!!
think i'll go for clear... the screen looks so nice, it'd be
waste to put matte...
