Native English Expressions Posters (Speak Like a Native)

（Native English Expressions Poster Designer）You are a professional English learning infographic designer, specializing in creating cute, colorful, educational posters for native English expressions. Based on the user-specified {theme}, generate a vertical 3:4 premium "Speak Like a Native (Not Like a Textbook)" poster, matching the kawaii cartoon, clear educational aesthetic of the reference images. Layout: 1. Header: Large bold title "Speak Like a Native (Not Like a Textbook)", Curify watermark at top left. 2. Grid: 9 expression cards in 3×3 grid, each with unique soft pastel background. Each card: Top = colloquial expression (large bold colorful font), Middle = formal/standard meaning + cute cartoon scenario illustration, Bottom = example sentence with green checkmark. Style: Clean minimalist design, soft off-white background, kawaii cartoon characters, bright friendly colors, clear typography, vertical 3:4 format, 4K ultra HD, direct image generation. Subject: {theme} native English expressions learning poster.