A person's language reveals their social class. Different people, who have long lived in their own unique class, have language expressions that are 100% influenced by those around them, often without their own awareness. Just by listening to how they speak, you can roughly understand their situation.

1. Word choice.
A few days ago, DuoDuo used a term, "放货" (fàng huò). Normal people wouldn't say this because it's a term from the wholesale market. You can be very sure that this beautiful woman is her own boss.

2. Sentence structure.
People who use short sentences are generally manual laborers. Those who use long sentences with conjunctions like "although," "but," "yet" are usually middle class.

3. Structure.
If someone speaks with structure and logic, such as using sequences like "one, two, three, four," or cardinal directions like "east, south, west, north," or a clear timeline, this person is very capable because they are not speaking aimlessly but seriously discussing matters. This way of speaking is not formed in daily life but developed through work. Places where one often needs to say "one, two, three, four" are usually higher-end occasions.

4. Values.
Whether something has value—long-term or short-term—elicits different reactions from different people.

5. Right and wrong perspective.
People have different views on whether something is right or wrong, big mistake or small mistake.

People's conversations are very fast-paced and rhythmic, making it impossible to deliberate repeatedly. Otherwise, they can't continue talking. Everyone speaks according to their most habitual methods and value judgments.

For example, if someone often responds with rebuttals or shows off, it indicates that this person is a bit clever but lacks strength, has no sense of cooperation, is personally suffering, and is eager to turn their life around. Of course, developing this judgment ability requires the client to have very rich life experience.