Share The video then cuts to a 'best friend' who awkwardly looked between the mother and boyfriend - showing that the best friend would know more than either a mother or boyfriend. 'First viral video clocking in at a big 1.4m overnight... am I @tiktok famous yet?,' Alli wrote in the caption of her Instagram post of the clip. Acting: In the clip, she shared a clip of herself pretending to be a mother (left), as she mouthed the words: 'Ha! I know everything about my daughter.' She then put on a baseball cap, pretending to be a boyfriend (right) and mimed: 'There's nothing I don't know about my girl!'