How do I perfectly cook a medium rare steak?

i've been learning how to cook steak for some time now, and Ive always been told to use the thumb to middle finger method in determining whether or not the steak is medium rare. however, when I do use that method, the steak usually comes out just a tad over it and has more of a brown-pinkish colour instead of a... show more i've been learning how to cook steak for some time now, and Ive always been told to use the thumb to middle finger method in determining whether or not the steak is medium rare. however, when I do use that method, the steak usually comes out just a tad over it and has more of a brown-pinkish colour instead of a solid pink. is there any way to cook a medium rare steak perfectly?
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