Keep your passport, a credit card and some cash with you at all times.

Try to blend in.

Register with the U.S. Department of State's "Smart Traveler Enrollment Program.

Arrange your travel so that you arrive and depart during daylight hours.

Sign up for group tours or planned events so that you'll be able to meet other people with whom you can do other activities.

Give your family or friends an itinerary of where you'll be on certain days, and set up a mechanism to check in periodically.