Welcome to CORQ’s weekly analysis of how brands are using TikTok to garner attention, communicate with consumers and boost sales. Dupe culture Filming yourself holding up an item and saying “Gucci dupe”, or whatever “dupe” it is, is the current TikTok obsession. Alyssa Yasmeen’s toddler’s version was viewed 11.5 million times. Creator Sara’s version also has 11.5 million…