You can greet someone saying Bonjour if you want to say hello or Good morning in French in formal way
The word Salut is more of a casual greeting. You can it when you meet someone again on a same day
You use formal Bonsoir when you meet someone first time in a day but during the evening time
This is a casual salutation mostly used among close friends
This salutation is exclusively used for telephonic conversations
This is a formal way of saying goodbye in French
This is the casual way of saying goodbye in French. It used mostly with close friends & family
This is another casual greeting to tell someone you will see them later(unspecified time)