Please choose the correct ending to complete the given sentence: Youth: [header] How to not act like an idiot around your crush [title] Just breathe. [step] When you see your crush and start feeling excited and nervous, focus on your breathing. Remember that your lungs get less oxygen when you take quick, short breaths, which makes your heart speed up and your body tense up.

Ending1: What you are doing is supposed to help you concentrate and focus on your breathing rather than singling your attention on your crush. [title] Get to know the person that you're on a crush with. Ending2: You may even start shaking if your crush isn't near you. A quick, deep breath in, hold it for a few seconds, and then quickly release it. Ending3: So make a point of taking deep, long breaths to calm both your body and mind. [substeps] Inhale through your nose and exhale through your mouth. Ending4: Just breathe in and out slowly, counting to five on the count of four. Try : [substeps] Counting to four on every inhale.

Answer format: ending1/ending2/ending3/ending4