This is probably a good time to get straight the relationship of the ready room to the bridge. On TNG, the ready room is accessed through a door on the bridge, which is how I've been picturing and playing it. But some of the other posts suggest that people are picturing it as accessed from a corridor or someplace just off the bridge. I think it makes more sense for the captain (or acting captain) to step out of the ready room and onto the bridge, as a matter of practicality and security, but I think that's probably a matter for a GM ruling.