This week we wish Facebook a happy 20th birthday, discuss AI tools that help shoppers, dive into a host of trend reports, and so much more.  The 5 Things: Happy Birthday to Facebook, who turns 20!Amazon rolls out new AI tools to help shoppers. A slew of trend reports explore the latest in social behaviors. Walmart steps into the ring against Amazon's omnichannel ecomm tech. TikTok continues to incentivize creators towards shoppable posts. Sources: Aljazeera, Reuters, Pew Research, Instagram, Pinterest, TikTok, pymnts.com, Social Media ExaminerHosts: Joey Scarillo, Abby Ness, Rick Shuman  To subscribe to our newsletter, click HEREEmail us: Podcasts@Grey.com