BERLIN (AP) - Paris Hilton is making a personal contribution to protecting the environment. ''I changed all the light bulbs to energy-safe light bulbs and I'm buying a hybrid car right now,'' the 26-year-old celebrity heiress said Wednesday.

Hilton said she turns off the lights, doesn't leave the TV on or the water running when she leaves her house. ''Little things that people can do every day to make a huge difference,'' she said. She was in Berlin to take part in an advertising campaign for Rich Prosecco, a sparkling wine sold in cans.

Hilton told reporters she's looking for a boyfriend and knows exactly what qualities Mr. Right should possess. ''Right now I'm single but I am looking for a nice boy,'' she said. ''He should be funny, smart and loyal.''

Hilton said she was planning to visit one of Berlin's Christmas markets, the city's famous museums, and had already been partying at the city's trendy Cookies club.

-More Paris Hilton Pictures

Copyright 2007 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.