To enhance self-service signups by segmenting website visitors, I would begin by examining the site's traffic data. My segmentation might include demographic categories like age, gender, or location, while also exploring behavioral factors such as pages viewed, duration of visits, and sources of referral. Subsequently, I would investigate what drives a visitor's choice to sign up. For instance, if I discover that those who visit our pricing page are more inclined to register, I might adjust the website to increase the visibility and accessibility of that page. Alternatively, if a specific geographic area shows significant interest but has low signup rates, I could consider localizing content or offering region-specific deals. The objective is to create a website that feels personalized, relevant, and engaging for each identifiable visitor segment.