Please choose the correct ending to complete the given sentence: Youth: [header] How to let your crush know you like them [title] Look approachable. [step] This aspect is essential. Smell good; effective hygiene is also a must.

Ending1: Sit up straight, your legs hip-width apart, and smile naturally. These small movements are integral to your overall confidence. Ending2: Remember to let others know you are open to talking about your feelings, and do it in a friendly way. Girls need guys who know they can talk to without having to worry about other people overhearing. Ending3: Brush your teeth; either at least every day. Make sure you don't wear jewelry--necklaces/bracelets, earrings, etc. Ending4: Would you like to date someone with smelly armpits? [title] Dress well. [step] Show good fashion sense, yet stand out from the crowd.

Answer format: ending1/ending2/ending3/ending4