After the judge gives you your instructions and you hear the attorneys' closing arguments, you leave the courtroom and go to the jury room to begin your deliberations. "Deliberation" is the process the jury uses to reach its verdict. During deliberations, the jury will discuss evidence and review law and facts.
The first thing you should do is select one member of the jury to act as the foreperson. The foreperson presides over the deliberations, seeing that everyone has an opportunity to participate and that the discussions remain orderly. The person chosen to preside takes part in deliberations and votes on the verdict along with everyone else.