If you find yourself low on cash, flashing lots of jewelry usually proves to be a good alternative. Wish for things out loud. Insult the locals and their country. I can't believe how corrupt your government is. It sure is dirty here.
Mexican television sucks .
For best results, note the emphasis and use a loud tone of voice when saying these things. Do not attempt to speak Spanish. You probably don't even use those in English. Never display common courtesy. And last but not least Don't come to Mexico.