How to say HOLA in COSTA RICA?

In Costa Rica people don´t say Hola nor adiós, they say ¡Pura vida! that means the same. They either say Gracias or De nada, they use ¡Pura vida!
Remember, the expression ¡PURA VIDA! means lot of things in a positive way.
¡Pura vida! Estoy con mi amigas...
He perdido mis maletas, pero...¡Pura vida!
Did you know this expression before?