Etiquette
In Cuba, "good manners" as you could know them are generally the same. A few minor variations to be aware of: Both locals and foreigners find Cubans to be friendly. In fact, they place a high importance on being nice, kind, and willing to be welcoming. Touching is a common occurrence. Here, it serves more as a sign of affection or an accent when speaking.
The stereotype holds that "Cubans despise open disagreement and will often minimize interpersonal issues by communicating them through insinuation instead of direct accusation." Having said that, it is usually indicative of an expressive dialogue rather than a brawl or a heated argument when you hear individuals yelling or possibly arguing (in public).