Very good advice, thanks bavaria. I for one cannot afford to change my wardrobe 'to blend in' so I'll be wearing my American clothes and avoiding eye contact will be essential.
This whole 'spotting' the culture thing is true though. I know when we're at Disney World it's quite easy to differentiate cultures based on style of clothing. It's become a game with us. Not in a sneering way but just to see if we can globally place someone by their attire.
We live in Orlando and part of the fun is picking out the tourists and their funky clothes. I guess it's our turn now to be picked out and made fun of!!! What comes around goes around!