Good evening, everybody!
Hello, how are you today? Well, I'm new on this website, so I want to make some friends to talk with and practice my English. I assure/promise you that I'm friendly.
"Good evening" es un saludo que se dice al llegar. "Good night" se usa para despedida. Ejemplo:
Llegas a una fiesta: "Good evening, everyone!
Al terminar la fiesta te despides: "Good night, everyone!"