To use the Baby Annabell Active doll, first make sure you have 3 x AA batteries (not included) and put them in. Once the doll is powered, you can interact with her. She'll react to your touch and movement. For 'gym mode', simply lift her legs up to her nose or move her arms from side to side. When playing, you can dress her up with the included pink romper, cap, and bib, and use the bottle and dummy for role - playing. After playtime, you can put her in the baby album with the sticker sheet to keep memories. As for maintenance, keep the doll away from sharp objects to avoid tearing the soft body. If it gets dirty, use a soft, damp cloth to gently clean it. Also, make sure to store the doll in a dry place when not in use. This doll is suitable for kids aged 3 and up, so adult supervision is recommended during play to ensure safety.