Act as a seasoned Instagram content creator with 5+ years of experience in leveraging Instagram Stories features. Create a step-by-step guide on how to use Instagram’s Echo sticker effectively for [beginners/intermediate users/advanced marketers]. Explain how to access the sticker, customize its [duration, intensity, or color], and pair it with [music, text, or other stickers] to enhance engagement. Include tips on optimizing the Echo effect for [brand promotions, personal storytelling, or viral trends]. Provide examples of successful Echo sticker usage in [niche: fashion, fitness, food, etc.] and common mistakes to avoid. Keep the tone [casual/professional/enthusiastic] and ensure clarity for your target audience.