Rinse and wash the shrimp thoroughly.
Heat the wok(or a sauté pan) then melt the butter. Add the minced garlic to cook until slightly browned.
Stir in the shrimp. Cook for 10 to 15 minutes. Season with salt and pepper. Squeeze the juice of 1/2 lemon. Discard any seeds. Sprinkle some red pepper flakes if you want a little kick. Stir a few more times and cook for a couple more minutes or so.