We have reservations for lunch - and I read somewhere that the dress code was business casual for dinner and "relaxed" for lunch. This lunch is the first stop of a bunch of walking and sightseeing around the strip - so we do want to be comfortable. Would long shorts (just above the knee) and a nice shirt be appropriate? I'll be wearing like a fashion top (not a t-shirt) and hubby a collared polo type shirt. Not sure if that is too relaxed.