Background: Software Engineering, Sri Lanka
Different software companies in Sri Lanka use different culture to call senior developers, managers, etc.
Eg: Some companies use Sir, some companies use Mr. Name, Some companies use just name.
Manager or senior developers are in almost all interview panel I have faced. But I don't know how to call them(Sir, just name or Mr. name) during interview. So most of the time I just say "You, your, etc".
So, what is the best way to call them?