Be specific
Vague: "Make me a website."
Better: "A one-page site for my yoga studio with class times, pricing, instructor bios and a booking button. Calm, earthy colours."
Describe the look
Colours: "dark theme with emerald accents"
Feel: "premium and minimal"
Layout: "large photo hero, three service cards"
Work in steps
Build the core first, then refine one thing at a time. Small, clear requests are faster and use fewer credits.
Point at the problem
"On mobile the menu button overlaps the logo" works better than "fix the header".
Show, don't just tell
Attach a screenshot or add a reference site from the / menu.
Save credits
Wording, colour and image changes are free when you click them directly in the preview.