Please choose the correct ending to complete the given sentence: Relationships: [header] How to be cool so girls notice you [title] Maintain your personal hygiene. [step] You've got to look after your appearance if you expect girls to be interested in it. The first step is regular showers, brushing your teeth daily, and wearing deodorant.

Ending1: Make sure your shampoo is fresh and dark so girls aren't smelling your cologne. You should also be aware of when you've been allowed to touch girls, and make sure to clean yourself. Ending2: [substeps] Body spray or cologne can make you more attractive to girls. Yellow armpit stains may be caused by antiperspirant deodorant. Ending3: You should also regularly shampoo, use conditioner, and use body spray so girls will know to respect you or not do it. [substeps] If you really don't plan to have girls jealous of your hygiene, shower once every two to three days, but only after your hygiene practices have been changed. Ending4: If you don't, you may have to put in a little bit of effort to fix your appearance. [substeps] For example, if you love bright colors, but want to stay cool in them, consider opting for a brighter purple or some colorful toothpaste.

Answer format: ending1/ending2/ending3/ending4