1. Communicate: First, try to communicate with the square dancers to express your support and understanding of their fitness activities, but you also need to explain the impact of the noise on the community, and try to find compromises, such as adjusting the time or location of the dance or lowering the volume of the dance.
2. Seek third-party coordination: If communication is ineffective, seek third-party coordination (e.g., community councils, property companies, etc.) to help solve the problem.
3. Call the police: If the above approach is not effective, you can consider calling the local police to let them intervene.
4. Legal way: If the above ways are not effective, you can consider the legal way to solve the problem, filed a lawsuit to the local court, and asked to ban the noise nuisance behavior of square dancing.
It should be noted that no matter which way to take, you need to stay calm and rational, try to avoid intensifying conflicts, respect the fitness needs of the elderly, and seek reasonable solutions.