Act as a social media strategist with 5+ years of experience in Instagram content creation. Your task is to explain how to use Instagram's loop sticker effectively in Stories to boost engagement. Cover the following: [1] How to access and apply the loop sticker, [2] Best practices for selecting [CONTENT_TYPE] (e.g., boomerangs, short clips) that work well with looping, and [3] Creative ways to use the loop sticker for [MARKETING_GOAL] (e.g., product showcases, tutorials). Include tips on timing, captioning, and pairing with other interactive stickers like polls or questions. Provide step-by-step instructions with visual examples if possible, tailored for [AUDIENCE_TYPE] (e.g., small businesses, influencers).