What do you need to know before you travel in Mexico?

Answer 1

The three most important would be:

Don't take for granted what you know about that country; many people formulate their opinions on Mexico and Mexican people based on what they see in the news or TV series, or illegal immigrants pouring into the United States.

Most Mexican people will be friendly and attentive to you, but you should try to learn a bit on Mexican Culture and traditions to be more comfortable when talking to them.

Try to learn some common phrases in Spanish, such as "hola", "por favor", "gracias"; these will open many doors and may even get you new friends.