You say Hola, and give a little kiss on the cheek.
Not to is not used to greet someone.
For the most part yes (at least from my experience/to my knowledge). One kiss on each cheek is is a common way to greet someone and also done when saying goodbye.
What is greet
To greet someone in the morning you say 'Good morning.'
to say hello or greet someone with happiness and joy
Hola!
Namasta
to greet someone
konichiwa
People greet each other to show respect. just say that someone is coming into your home, you greet them. this shows them that they are welcome to come into your home.
"Konnichiwa" is "Good afternoon."
hi