Inspired by a recent visit to an impoverished Yunnan village, actress Karena Lam Ka-yan says she won't waste a single drop of water again. In March, the Oxfam ambassador travelled with the charity to the undeveloped village. Canada-born Lam (below) says her first close-up encounter of such a poverty-stricken area took her breath away. 'In my four days there, I wrote diaries and thought how everyone could live much simpler lives,' the 26-year-old said at a press conference held by the charity in Causeway Bay. 'I told Oxfam that I'd like to return as a volunteer next time.' On learning that people in Yunnan typically have only two showers in their lives - the day they're born and the day they die - Lam has become more conscious about conservation and wants to share her experience. 'I used to let the water run freely when I brushed my teeth,' she said. 'But now I only turn it on when I need it. I always turn off electrical appliances when I leave home. Just these little things I'm very aware of. 'I'm happy that I had this experience early in my life,' she said. 'It taught me to cherish things a little bit more.' Lam, who won best supporting actress and best newcomer at the 21st Hong Kong Film Awards and the 39th Golden Horse Film Awards for her part in Ann Hui's July Rhapsody, said the villagers showed her how they lived in such harsh conditions and the impact the charity's poverty alleviation efforts were having. Lam said that tackling poverty on the mainland took a great deal of effort, time and patience. 'It's too big, too grand,' she said. 'Yunnan is just one example from many. There are still some areas you can't cover or even see on a map. But you just take it day by day. You can't rush through and get frustrated. It needs a lot of passion, too.' To raise money for the Oxfam China Development Fund, Lam donated an ethnic outfit given to her by the villagers and autographed Oxfam rice packets that will be put up for auction. Lam hopes to have an exhibition or booklet to showcase the photos she took. 'Even if I don't get the exhibition or booklet, it's fine because the experience is still with me,' she said.