Conveying potentially hostile attitudes in social situations without being noticed is a delicate task that often requires subtle behavior. Here are some possible strategies, but it is important to note that such behavior is not encouraged because it can damage relationships: 1. **Body language**: Using subtle body language, such as turning slightly away from the other person or keeping a slight distance, can subconsciously convey an unfriendly attitude. 2. **Tone and pace of speech**: Hostility can be conveyed without being obvious by changing the tone or pace of speech, such as using a slightly cold or emotionless tone. 3. **Eye contact**: Looking away too early or avoiding eye contact can make the other person feel unappreciated. 4. **Response style**: Keeping the conversation polite, but responding briefly and without enthusiasm can make people feel unwelcome. 5. **Ignoring contributions**: In a group setting, intentionally slightly ignoring the other person's contributions or not responding directly to their points. 6. **Topic change**: Lack of interest in the other person's topic and quickly switching to other topics without intending to linger on them. 7. **Time Management**: Acting busy all the time gives the impression that you would rather be engaged in other things. Importantly, these behaviors can be interpreted as hostility and are generally not suitable for constructive or long-term relationships. If you have a problem with someone, the best approach is often direct and honest communication rather than conveying emotions through potentially hostile behavior.