- Be a noise pollution fighter, don't honk today.
- Silence is golden, no honking today please.
- Honk only if you must, respect the peace today.
- Let's keep the city calm and serene, no honking day today.
- Your horn is not a toy, honk wisely, drive safely.
- Show some kindness to your fellow citizens, give them a break from the noise.
- Think twice before you honk, it might be more harmful than you think.
- Let's reduce noise pollution, pledge to not honk today.
- Honking is a sign of impatience, be patient and courteous today.