" People planning suicide may take measures to settle their affairs before proceeding. This is a major warning sign since someone tying up loose ends probably has a suicide plan in place. Someone who is suicidal may do one or more of these to get ready:  Give away their prized possessions. Make financial arrangements, such as suddenly writing a will.  Say goodbye to loved ones. A person that is considering suicide may suddenly make a point of saying a heartfelt goodbye at odd times. Since suicidal people feel no reason to live, they may take risks that could lead to death, like driving recklessly or while impaired. Here are few potential signs to look out for:  Excessive use of drugs (legal or illegal) and alcohol. Reckless driving, such as driving too fast or under the influence. Unprotected sex, often with multiple partners. It's a good idea to investigate whether the person has recently purchased a gun, or might be stockpiling legal or illegal pills. If someone seems to be collecting medication or purchasing new weapons out of the blue, it's important to act quickly. Once their plan is in place the person could commit suicide at any time. Avoiding friends, family, or coworkers is common among suicidal individuals, who often quietly withdraw from normal social interactions. Take action, rather than just listening to someone who says "I just want to be left alone." If someone suddenly stops going to their weekly pick up basketball games or their favorite game nights this could be a warning sign. Skipping out on going out or taking part in activities they normally enjoy could indicate that someone is feeling unhappy, depressed, or possibly suicidal. Suicidal, depressed individuals often have little energy for basic mental and physical tasks. In particular, be on the lookout for:  Unusual difficulty making ordinary decisions. Loss of interest in sex. General lack of energy, behaviors like staying in bed all day. If the person in question is a teenager, watch for additional common warning signs and possible...

TL;DR in Chinese:
留意他们是否着手“处理各种琐事”。 留意鲁莽、危险的行为。 留意自杀方式。 留意他是否回避社交。 注意他的日常生活是否出现剧烈变化。 注意他们是否总是无精打采，看起来很不寻常。 提防青少年的自杀倾向。