A growing share now ask ChatGPT, Perplexity, Google AI Mode, or Gemini for recommendations before they ever see a search results page. For WooCommerce store owners, this shift is quiet but measurable: paid traffic stays steady, organic traffic slides, and brand searches tick up a few weeks later for reasons the dashboard cannot explain. Generative engine optimization, often shortened to GEO, is the practice of making sure your store and your products get surfaced when buyers ask AI engines for recommendations. The playbook is different from traditional SEO, and WooCommerce stores have a specific set of technical and content levers to pull. This guide covers the ranking signals that matter for product queries, the on-site changes that move the needle, the WooCommerce-specific setup that most stores miss, and the measurement approach that separates real progress from vanity metrics.