LaLaLu on Instagram: "🎬 13 Going on 30: That iconic “Show me your tongue” moment wasn’t just a joke , it perfectly sets the movie’s whole message. Jenna is 30 on the outside but still 13 inside, and this scene was written to instantly remind the audience that her emotional brain never grew up. Fun fact: Jennifer Garner leaned hard into awkward body language on purpose, copying how real teenagers act, which is why the scene feels so real and funny instead of scripted. It’s not just comedy , it’s