The Words
How Mexicans actually open conversations — and the words that fly back as a reply.
Greetings
About Greetings
How Mexicans open a conversation, and what comes flying back at you. Fewer entries here than the other categories for now, because a small number of greetings cover most situations and they're worth doing properly rather than padding out.
Greetings carry more weight in Mexico than English speakers expect. Skipping straight to your question — no buenas tardes, no how's it going — reads as brusque even when your Spanish is otherwise good, and it's probably the single most common way foreigners come across as rude entirely by accident.
Why greetings are the hardest easy thing
The reply is the difficult half. Mexican greetings come in pairs, and the opener is the part everyone teaches. ¿Qué onda? expects something back, and a bare bien closes the exchange before it has started — not rudely, exactly, but flatly. Bien, ¿y tú? or aquí andamos hand it back and keep the thing open. English lets you absorb a greeting and move straight to your question; here that reads as skipping a step.
The second half is that greetings scale with the room, and the same person can need three of them in a day. Buenos días to the portero on the way out, qué onda to a colleague you are relaxed with, quiúbole to somebody you have actual history with. Getting that wrong is not a grammar error and nobody will correct you. They will quietly file you as stiff, or as trying slightly too hard, and neither is easy to recover from.
Third, and least intuitive: the greeting is often not aimed at a person at all. Walking into a small shop, a waiting room, a lift, a taxi — a buenos días or just buenas goes to the room. It costs nothing, it is expected, and skipping it is the single most reliable way for a foreigner with otherwise good Spanish to come across as cold.
Greetings — common questions
Which Mexican greeting should I learn first?
¿Qué onda? It covers friends, relaxed workplaces and most people under about fifty. It is informal, so keep buenos días or buenas tardes for strangers, older people, and anyone standing behind a counter.
Do I need to greet people I do not know in Mexico?
Yes, and more often than in the US or UK. Entering a small shop, a waiting room, a lift or a taxi normally gets a buenos días or a simple buenas. It is addressed to the room rather than to one person, and leaving it out is the most common way foreigners read as brusque.
How do I answer ¿qué onda?
Return something and hand it back: bien, ¿y tú? or aquí andamos. A bare bien is not wrong, but it ends the exchange rather than continuing it, which lands as cold rather than efficient.
Is ¿qué onda? rude?
No, just informal. It is ordinary among friends and in relaxed offices. It would be too casual for a first meeting with someone senior, a formal workplace, or an older stranger, where buenos días is the safe choice.