Explanation
In Mexico, pointing directly at a person with the index finger is considered aggressive and disrespectful, as it mimics a gesture of accusation or confrontation. For objects or directions, it is more acceptable but still less polite than using the whole hand or a chin point. This norm is rooted in a cultural preference for indirectness and respect for personal dignity.
Local Tip
Instead of pointing with your finger, gesture with your whole hand (palm up or open) or use a subtle chin lift to indicate a person or direction.
How it compares elsewhere
Pointing with the index finger is considered very rude; use an open hand or a gentle nod instead.
Pointing at people is seen as impolite, but pointing at objects is generally acceptable in casual contexts.
Pointing with the index finger is offensive, especially at people; use the thumb or an open hand.