It's not just people — in China, the robots are also getting ready to celebrate the Lunar New Year. Friday was dress rehearsal day for four cute humanoid robots, each about 95 centimeters (3 feet) tall at a mall in western Beijing. Curious onlookers stopped to watch. Each robot got a colorful lion costume and within minutes the moves started: Bend the knees, up, to the left, to the right, shake the mask, and do it all again! Ahead of the Lunar New Year celebrated next week, and as part of different “fairs” and activities around Beijing, some venues have…