Shortcuts to keeping peace on the streets....
Keep the locals calm and thinking you are muy educado, very polite, by learning and employing a few common phrases...
Con permiso. Excuse me. (literally, "with permission")
Perdón. Pardon (me).
Por favor. Please.
Lo siento. I am sorry. (literally, "I feel it")
Discúlpeme. Excuse me.
Pido mil disculpas. I ask a thousand pardons.
Siga nomás. Just go ahead....Go right ahead.
Muy amable. Very kind. (A common way to say thank-you.)