howdy, my first trip to Brazil in a couple of weeks. I'm going to spend a weekend in Rio, and based on a thread here I booked the Mar Ipanema.

Any advice on how to 'fit in', or, perhaps more importantly, how not to stick out like an obnoxious tourist? I also read somewhere that you're not supposed to sit on your towel at the beach...is this true?

TIA...

Chris