Greetings in society. People shake hands every time they see one another or are introduced. Close friends of opposite gender greet with a kiss in the cheek, whereas close male friends give each other a simultaneous hug and strong handshake. Status Mexicans are very status conscious. They care about what you wear, what car you drive.
Professional titles are also very important.
Do this even if you know that your business partner is not a licenciado. Under Mexican law, every company must belong to one of these chambers. Mexico has vast natural resources and a huge labor supply. Mexico needs to integrate technology into it's economy if it hopes to be a competitive nation. Hopefully, the government of Mexico understands that it needs to lure in high-tech companies such as Level 3 by offering them tax benefits and preferential treatment.