Make sure you are not carrying anything considered illegal in the countries you are visiting. Check the customs regulations for the country prior to departure by contacting the appropriate consulate or embassy. Many travel guides list this information as well. Likewise, read all posted signs at the border crossings. Some border crossings require proof of vaccinations, which may not be a requirement when travelling by plane.
Female travelers are sometimes more likely to encounter harassment.
Uncomfortable situations can often be avoided by taking the following precautions. Although short skirts, shorts and tank tops may be comfortable, they may also encourage unwanted attention. Avoid walking alone at night or in questionable neighborhoods. Do no agree to meet a person whom you do not know in a secluded place. Be aware that some men form other countries tend to mistake the friendliness of American women for romantic interest.