my first time masturbating

I'm a guy but most people say rub the clitoris, its at the top of the vagina under the skin. Be gentle at first. There isn't much that can go wrong and if you do it right it will feel good, have fun

Go with your what your body is telling you... use your finger first and before it goes near your vagina make your finger wet with saliva, then move it around on the clit and around your hole and you will soon know what to do that will make it pleasurable for yourself, when you are ready to put your finger inside you make sure you are wet and take a deep breath relax and it will slip in with only a tiny bit of pain.