The whole of this game is talk whit other people
Upset someone enough and you might just cause an intergalactic war. Which isn't good.
Unlike Jade and Knights you'll also be able to tread a finer diplomatic line than being simply good or evil, whit a conversational option maker that'll let you steer the emotional content of your chat in six different directions. Be positive and you'll say nice bland things keep being negative and you might pull a gun.
Speaking of which combat's a depature from all bioware's previous games an interesting blend of real time action and RPG points. Basically you have to aim weapons at enemies yourself but once you've pulled the trigger a whole host of factors from your own skill and upgrades to how long you've had your weapon determine whether you'll hit your target or not. Squadmates will move and fire independently though you can take over from any of them at any time you like. Bioware are being maddeningly vague about the release data at the moment they say Christmas but not whether they mean this year or next year but this is definitely one for your videogaming diary.