Don't expect everyone on the planet to speak English. Leave a tip. Know that things will go wrong, and when they do go wrong, try not to yell at whoever appears responsible. (He's probably not responsible.) These are hard-and-fast guidelines that travelers should know and follow—and that we've probably all heard before. Is there anything new to say on this matter? I think so. Here are 10 more ideas for traveling without being a tacky tourist, a loud American, or, plainly, a jerk.
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