Generally, both sides give opening statements describing the case. The petitioner (whoever has filed for the hearing) then presents their case by calling witnesses. The respondent (the other side) may then cross-examine the petitioner’s witnesses, and the petitioner has the right to ask additional questions (re-direct) after the respondent has cross-examined.
After the petitioner finishes presenting their case, the respondent calls their witnesses (the same procedure as before: examination, cross-examination, and then re-direct examination). Finally, both the petitioner and respondent give closing arguments. You may wish to ask that the “record” remain open so that you can submit a written closing argument.