When dealing with traces of a fight in public, the first thing to do is to ensure the safety of yourself and others. If the situation allows, it is most important to call the police and seek professional help in time. Here are some emergency steps: 1. **Assess the situation**: Confirm the safety of the surrounding environment and ensure that there is no further danger. 2. **Clean up the scene**: - If there is blood, use a paper towel or clean cloth to gently absorb it instead of wiping it to avoid spreading the stain. - If there are broken furniture or other items, try to move them aside to reduce safety hazards. 3. **Cover up the traces**: If there is damage, you can temporarily cover it with clothes, paper or other available items. 4. **Stay calm**: Calm your emotions, avoid causing greater panic, and respond rationally. 5. **Seek help**: Find the staff or security personnel around, report the situation and ask for assistance. 6. **Record the situation**: When it is safe, record the time, place and process of the incident in case of subsequent needs. It is important not to deal with or cover up serious situations alone, and be sure to contact professionals. Safety and compliance are the first priority.