How do you listen to something you do not agree with ? how do you react to what you are hearing ?
Well, you are concluding that you are not agreeing with it. So if you can correct it then well and good. If you cant just keep a note that they made a mistake. Remember you have your own perception.
You wait until it's your turn and then you calmly state your position. Just try to have good reasons to disagree and don't get emotional.
Ignore them and stay quite...
1) patience2) your ears pick up the sound and send signals to your brain, and the rest is history
Stay quiet and pick up the things they say so you can counter and later give opinionated facts on the subject from your point of view.
If someone just says something I don't agree with, I listen to it politely. If they continue to harp on it endlessly, I make an excuse and leave. If they won't accept my excuse, I just leave anyway.
Just don't offer any approval or agreement.