Many people call me by name and I do the same. However, we do use call signs too! For example:
"North Weald, good morning, this is G-****"
"G-****, North Weald, good morning Kolibear, pass your message"
"Good morning AerBabe, G-**** is a ..." etc etc.
Note: Kolibear's RT isn't that good. He doesn't bother with 'Golf'.
