Get that frying pan hot, medium-high to high heat! It's key for quick cooking and a perfect sear without overdoing it. Add high-heat cooking oil and avoid overcrowding the pan with too many prawns or shrimp. Fry them in batches if necessary, giving each one enough space to cook evenly. Cook for just 1 minute per side – watch for that pink colour and curling up, and you're good to go. If overcooked, they'll get tough and rubbery. As soon as they're done, take them off the heat to stop any extra cooking.