The stage directions would indicate a sense of urgency and tension between Liz and Julian as they debate whether or not to turn back. This would impact the actors' performances by emphasizing the stakes of the situation and the characters' conflicting emotions.

could you write thi like a 12 year old but keep it formal

Liz and Julian were arguing loudly on the stage. They both looked really worried and were speaking quickly. The words in the script told them to act like they were in a hurry and feeling stressed out. The actors knew they had to show how much the characters cared about the decision to turn back or keep going. This made them act with a lot of energy and tension. It was like they were really in the moment, ready to make a big choice.