Discussion in the jury room should be open and frank. Each juror should feel free to say what he or she thinks--and why. Each juror should respect the right of others to their opinions and be willing to listen to them.
You should not hesitate to change your mind if you are persuaded that your first opinion was mistaken, but you should not change your mind unless you are convinced of that.
The goal of jury deliberation is agreement on a verdict, but no juror should try to force another to adopt his/her position. Courteous and reasonable discussion will usually make it possible to reach agreement.