Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to act serious [title] Wear a serious facial expression. [step] Lower your eyebrows slightly, but do not allow them to slant inward. This can make you look angry.

Ending1: You should also wrinkle your brow, giving you the appearance of being deep in thought, and squint your eyes slightly. It also may benefit you to keep a straight face. Ending2: [title] Dress in appropriate clothes for an event. [step] You may go to a given venue and expect an angry effect, but acting serious is better than acting composed and professional. Ending3: [title] Keep your arms uncrossed and let your shoulders roll back slightly while you raise your chin. [step] This will help give this impression of a bored or joking person. Ending4: Equally important: smiling and showing your teeth can make you look like your parents are plotting to do something cruel or forbidden, which you may or may not take lightly. [substeps] Do not smile if you would like.

Answer format: ending1/ending2/ending3/ending4