How do cowboys say hello?

I'm curious to know, how exactly do cowboys greet each other when they come across one another out on the range? Is there a specific phrase or gesture they use to acknowledge each other's presence? Perhaps it's something iconic, like a nod of the head or a particular call out. I'm interested to learn about the traditions and customs that have been passed down through generations of cowboys, and how they communicate with one another in a way that's both respectful and unique to their way of life.