How do say hello in Colombian?

There are a few ways to say "hello" in Colombian Spanish, depending on the context and level of formality:

Formal:

* Buenos días: Good morning (used until noon)

* Buenas tardes: Good afternoon (used from noon until sunset)

* Buenas noches: Good evening (used from sunset onwards)

Informal:

* Hola: Hello (most common)

* Qué tal: How are you? (literally "What's up?")

* ¿Cómo estás? How are you? (more formal than "Qué tal")

You can also use:

* ¡Hola! ¿Qué más? (Hello! What's new?)

* ¡Hola! ¿Cómo te va? (Hello! How are you doing?)

Remember: In Colombia, it's common to greet people with a kiss on the cheek, especially among friends and family.