This is corporate / chain restaurant America, and you will probably find the same in a chain restaurant in Spain. Typical mozos in Spain are just chill waiters like good waiters at normal restaurants in America. Anyone who goes "My name is Bobby..." is being forced to up-sell and act like a real estate agent by the restaurant company they work for, rather than be themselves. A good waiter anywhere in the world simply listens, responds, makes a joke, and serves your food. That is as true in America as it is in Barcelona.