Bao calls you! After HSK 1, 2 and 3 lessons, answer a live call and use your new words with a friend in Chengdu, Xi'an or Beijing. Collect a souvenir from each call. Lessons are simpler: numbered steps, ask your tutor from their face at the top, tap Explain it on grammar, and take your tutor's quiz after each text. Word and dialogue voices start faster and keep playing when you tap quickly. The bottom bar shows icons only, the level picker stays on top while you scroll, and the Friday League shows everyone's photo.