Yes, I have taken part in Green Summer Campaign to help the entrance exam's examinees in Hanoi. 

I can take part in many campaigns to help my community, such as Blood Donation, Volunteers Helping the Old, the Homeless,...

Be clear on your views on what you buy. For companies, your money is important… so don't hesitate to express your opinion! Do not buy products that are harmful to animals or from companies that use their animal abuse strategy. Whenever you can, buy local products to support the people around you and your local economy. When a company has a bad choice that affects people negatively, stop buying their product. Be proud of where you live. Take care and be proud of the area you live in. Conservation of where you live is not only good for you but also for everyone in your community. If you have a chance to help, take it because not everyone has the opportunity.