In social interaction, the vague expression of emotions needs to take into account the elegance of language and the clarity of intention. The following are several strategies that have been verified by linguistics and psychology, with specific situational examples for reference： **1. Semantic ambiguity strategy** *Selective response: "This is indeed a kind of. . . Unique way of thinking" (pause and tone down suggest reserved attitude) *Mathematical paradox method: "Your point of view has reached 50% accuracy" (precise numbers create rational negation) **2. Cognitive framework transfer** *Academic deconstruction: "From the level of basic logic, there are several explorable prerequisites for this proposal" (suggesting a lack of basic considerations) •Spatiotemporal dislocation method: "This idea should be very marketable before 2010" (Metaphorical concept is outdated) **3. Pragmatics blank-keeping skills** •Topic truncation: "Speaking of this, I suddenly remembered the latest research by XX experts. . . "(Suggesting that the current topic is not worth continuing) • Response delay technique: Stare at the opponent for 3 seconds and then smile to change the subject (nonverbal negation) **4. Metaphorical system construction** •Materialization metaphor: "Like an uncalibrated compass, the sense of direction is debatable" * Ecological metaphor: "The support structure at the bottom of the pyramid seems to have been ignored" **5. Society is darker** •Dimension reduction reference: "This treatment method is the same as the intern's plan last week." •Dimension-enhancing comparison: "Compared with Musk's first principle, this derivation process is very interesting" **6. Probabilistic negation** • "Within the 68% confidence interval, this conclusion may need to be re-tested" • "From the perspective of Bayes' theorem, the a priori probability of this premise is worthy of scrutiny" **Precautions：** 1. Micro-expression management: ensure the consistency of pupil constriction and the curvature of the corners of the mouth (to avoid cognitive dissonance) 2. Social distance control: increase the physical distance by 15-20cm to form psychological oppression 3. Information attenuation strategy: Using nested clauses to weaken the importance of opinions It needs to be emphasized that such skills are essentially the corrosive agent of interpersonal relationships. Psychological studies have shown that long-term use of vague denial can lead to： -Increased sensitivity of the amygdala (increased hostility between the two sides) -Decreased activity of the prefrontal cortex (decreased rational communication ability) -Inhibition of the mirror neuron system (degradation of empathy) It is recommended to give priority to the "sandwich communication method": affirmation (specific facts) + suggestion (behavior-oriented) + expectation (positive vision). For example: "You have made progress in time control (facts). If the data review is more systematic (behavior), the project compliance rate may increase by 30% (vision)". True high-level communicators often know how to transform psychological advantages into constructive dialogue. After all, there is a cloud in "Sun Tzu's Art of War": "A soldier who succumbs without fighting is also a good one. "