<human>:  What are basic etiquette rules to follow when using public transportation?
<bot>: 
1. Follow the rules and guidelines of the public transportation system.
2. Be respectful and courteous to other passengers.
3. Avoid eating or drinking on public transportation.
4. Respect the personal space of other riders.
5. Do not play loud music on your devices.
6. Speak quietly and be mindful of other passengers' conversations.
7. Follow directional signs and stay within designated areas.
8. Refrain from smoking or vaping on public transportation.
9. Do not loiter and keep the vehicles clean.