Do not decide by position alone. First check for an officer, working lights and priority signs. Only then assess whether both vehicles are approaching an ordinary junction or one is performing a manoeuvre.
A driver leaving a parking place or private property must give way to other road users. Coming from your right and using an indicator do not cancel that obligation.
At an ordinary unsigned junction, a driver approaching lawfully from the right does not lose priority simply by stopping. Never interpret a pause or eye contact as a guaranteed invitation to cross.