Once known mainly for Bugis Street, the district has found new life as a youth hangout – driven by thrift culture, experiential retail and a spillover into once-overlooked corridors. When marketing executive Crystal Yong went to Bugis recently, she had to remind herself to follow through with her objective of buying a Chinese New Year dress. The 23-year-old knows first-hand how easy it is to get distracted while in the area.    Most weekends, she and her friends spend hours weaving through