Tell AI who to be. A specific role shapes better, more useful answers.
Same question. Same AI. One adds a role.
To improve your website's loading speed, you can optimize images, use caching, minimize CSS and JavaScript files, and consider using a content delivery network (CDN).
General advice. A starting point, but not much depth.
First, let's prioritize by impact. Run a Lighthouse audit to identify your biggest bottlenecks. Usually it's images—switch to WebP format and implement lazy loading. For JavaScript, defer non-critical scripts and consider code splitting. On the server side, enable GZIP compression and set proper cache headers. These four changes typically cut load times by 40-60%.
Prioritized, specific, actionable. Real expertise shines through.
AI knows a lot about many topics, but it doesn't know what kind of answer you need. When you give it a role, you tell it which knowledge to draw from and how to communicate.
A "patient teacher" explains things simply. A "skeptical editor" challenges your writing. A "financial advisor" focuses on money matters. The role shapes everything—the vocabulary, the depth, the perspective.
Think of it like asking a question in a room full of experts. Without a role, everyone answers at once. With a role, you get one clear voice.
When you need concepts explained clearly
When you want honest feedback
When you need structured thinking
When you want informed perspective
When you want a specific style
When you need practical solutions
Start your prompt by telling AI who to be. Add relevant experience or specialty. The more specific the role, the more focused the answer.