• Online - feel free to message/invite me to a game, i'll see if I can join or not. If I don't respond, it probably means I forgot to put my status at 'Away', or I have 'Do Not Disturb' on.
• Away - probably sleeping, or cooking food, or drawing, mostly doing stuff IRL.
• In-game - will definitely reply late. I usually have 'do not disturb' on while playing.
• Offline - I may or may not be online, who knows, you certainly won't.

I will not add you/accept your friend request unless I know you, either from IRL, from a recently played game, or from places I frequent.