Gain Familiarity with the Local Language
If necessary, study the basics of the language spoken in the country to which you're traveling. Invest in a pocket dictionary and
Use Street Smarts
Determine in advance whether the foreign cities and neighborhoods that you'll visit are safe or potentially dangerous. If pickpockets are a problem, carry an empty wallet in your back pocket and keep all your money in your front pocket. If you have a purse, tuck it under your arm instead of carrying it over your shoulder. Also avoid going down dark alleys or side streets late at night (alone or otherwise), and avoid being in the middle of large crowds. Read Travel Safety for some sound advice.