Don't walk in the Baixa area at night alone. If you walk around during day time just keep your precious stuff at the hotel. Don't walk around with a fat wallet or your expensive cellphone. Most crime is on a "give me your phone and/or wallet because I have a big knife" basis. If driving at night just keep doors locked and windows almost closed to avoid issues.Friday, Saturday and Sunday night people party and can get very drunk, if you run over someone as a foreigner it's gonna cause you a big headache so drive slowly. Kids also run across the road often without looking out for cars. Avoid driving at night.
