Please choose the correct ending to complete the given sentence: Relationships: [header] How to be sincere [title] Use sincere body language. [step] Body language can convey a great deal about your attitude, and it can easily reveal sincerity (or a lack thereof). When you interact with others, try to be mindful of your posture, mannerisms, and behavior.

Ending1: You can feel like an outsider if you don't catch someone's eye when they're talking to you, but there are many signature body language cues to pick up. [substeps] When you're talking to others, try to maintain eye contact. Ending2: Also try to pay attention to your expressions. Are your eyebrows straight out? Is your body relaxed or slumped over? [substeps] The back of your neck can show disgust and even discomfort. Ending3: [substeps] Make steady eye contact, but don't stare. Look away every now and then, and don't forget to blink. Ending4: This will make it easier for you to empathize while you speak. [substeps] With an audience, be sure to look them in the eye, and try to maintain firm eye contact as you do so.

Answer format: ending1/ending2/ending3/ending4