How do you get pre-cum?

Answer 1

If you haven't hit puberty just jack off like you were trying to ejaculate, then you would have "seminal fluid" instead of sperm. If you have already hit puberty, then you can't.

If you have reached puberty and can ejaculate you already have pre-ejaculate. You don't feel it but it's about a drop or 2 that comes out and is used as lubrication. it also contains sperm and can get someone pregnant.