Always take cash, credit cards and keys with you. Ask police and local residents about problem areas and avoid them. If older children go off separately, be sure they have watches and check in with you at prearranged times. Leave essential non-travel papers, such as Social Security cards and irreplaceable photos at home. Put airline tickets and most cash in the hotel safe while sightseeing.
Tourist are major targets for pickpockets in many cities.
Stay alert to what's going on around you, keep a wallet in an inside pocket and a firm grip on a purse.