Add Yahoo as a preferred source to see more of our stories on Google. "I was, like, you know, smiling at the camera, like doing whatever to win these moms over… And it worked," Sivan said Todd Owyoung ...

"I was, like, you know, smiling at the camera, like doing whatever to win these moms over… And it worked," Sivan said Todd Owyoung/NBC via Getty Images Troye Sivan is revealing how he used to measure ...