There are no absolutes, but I would answer in-between some of the above (having been a 13–16 yr old girl myself, once upon a time)
If you really, really like a boy and you do all the typical sidestep romancing until you’re sure he likes you too… go ahead and experience that tingling, sensational feeling. It will make you feel crazy and amazingly alive!
If you want a boyfriend only because you think you’re old enough, but there is no passion attached to the feeling, you will lose the game of life. You will attract boys and you will only go along with what you “think” is the correct response. You will never trust a lover because you didn’t allow yourself to define what love or passion means to you.
So…. I’m no prude, but, young girl… wait. Wait for magic.