As being neighbor to USA, it might be expected that many Mexicans speak English, but they are not. As it is known, Mexico is dangerous country and travelling by unregistered taxis might lead businesspeople into the arms of the mafia who demands ransom. The general reputation of car rentals about using scammy practices might also put you off. It will be better to travel with a guide who speaks English and knows the big cities as Guadalajara and Monterrey. Reforma is one of the best areas in Mexico City to stay. Big companies expect you to have appointment before meeting and during meeting you should be sure that you are ready for their technical questions with a visual presentation. Biennially, Expotransporte Fair in Puebla for automotive sector is organized by the participation of big brands. Famous for its hot pepper, Mexicans eat even Mango with hot sauce. If you have never had tequila with worms before, you have not had real tequila.