Smoking cannabis in a group setting can be an enjoyable and communal experience, but it's essential to establish some ground rules to ensure everyone's comfort and safety. Here are some rules to consider when participating in a group smoking session:

1. **Respect the Group:** Treat everyone in the group with respect and courtesy. Be mindful of their preferences and boundaries.

2. **Designate a Driver:** If you plan to leave the location after consuming cannabis, make sure you have a designated driver who is sober and responsible.

3. **Pass to the Left:** When sharing a joint or pipe, it's customary to pass it to the left. However, this tradition may vary depending on the group.

4. **Puff, Puff, Pass:** When smoking a joint, take only two hits (puffs) before passing it to the next person. This ensures everyone gets a turn and prevents one person from hogging it.

5. **Respect Rotation:** Stick to the rotation when smoking in a circle. Don't skip someone or cut in line unless everyone agrees to change the order.

6. **Bring Your Own Supply:** Contribute to the group by bringing your cannabis, papers, pipes, or other necessary supplies. Sharing is encouraged, but it's polite to bring something to the table.

7. **Be Mindful of Dosage:** Pay attention to the potency of the cannabis being used. Not everyone has the same tolerance, so go easy on newcomers or individuals with lower tolerance levels.

8. **Respect Non-Smokers:** If someone in the group doesn't want to partake, respect their choice. Don't pressure them to smoke.

9. **Hydrate and Snack:** Have water and snacks on hand to combat dry mouth and the munchies. It's considerate to share snacks with the group.

10. **Use Proper Etiquette:** Cover your mouth when coughing and avoid blowing smoke directly at others. Be aware of where your smoke is going.

11. **Share Stories and Conversations:** Group sessions can be a great time to engage in meaningful conversations or share stories. Keep the atmosphere friendly and positive.

12. **Safety First:** Always prioritize safety. Make sure you have proper ventilation, fire safety measures, and first aid supplies on hand if needed.

13. **Clean Up Afterward:** Dispose of any trash, ash, or leftover supplies properly. Leave the smoking area as clean as or cleaner than you found it.

14. **Mind the Legal Status:** Be aware of the legal status of cannabis in your area and ensure you're following all local laws and regulations.

15. **Know Your Limits:** Don't feel pressured to consume more than you're comfortable with. Know your own tolerance and set your boundaries accordingly.

16. **Respect Privacy:** Avoid sharing photos or videos of others in the group without their consent. Privacy and discretion are crucial.

Remember that these rules can vary among different social circles and cultures, so it's essential to communicate openly and establish expectations with your group before the session. Ultimately, the goal is to create a positive and enjoyable experience for everyone involved.