Taking into account my knowledge as of January 2022, here are some activities that students should and should not do to contribute to green living:

### Should do:

1. **Participate in environmental protection activities:**

- Students can participate in activities such as cleaning the environment, trees, or participating in projects to protect animals or the biosphere.

2. **Learn and share knowledge about the environment:**

- Master knowledge about climate change, waste reduction, and other environmental issues, then share this information with friends, family, and the community.

3. **Use energy economically:**

- Students can limit energy use by turning off lights when not needed, using LED lights, and taking advantage of solar energy.

4. **Implement green projects in schools:**

- Propose and participate in green projects in school, such as creating an organic garden, implementing a recycling program, or educating about environmental protection.

### Should not do:

1. **Waste of energy and resources:**

- Limit the use of unnecessary electronics and optimize water usage to reduce resource waste.

2. **Dispose of trash in an unsafe manner:**

- Students should limit the use of single-use packaging and find ways to recycle. Avoid improper disposal of trash, especially recyclable trash.

3. **Not participating in green activities:**

- Limit participation in social activities and environmental education. Everyone can contribute a small part to environmental protection.

4. **Not promoting environmental education:**

- Students should promote environmental education and take action to reduce negative impacts on the environment.

Small actions from each student can make a big difference when combined. Students can also create awareness and increase green spirit in the community.