It may take some homework, patience and time. Do you know what her turn ons are? Or her turn offs? Find out what she's looking for in a guy and see if you have the qualities she needs.
Wel,if she doesnt have the same feelings as you do,she may throw u out of her friendzone herself.so find out if there are any signals of interest from her,before cnveying your softcorner for her.
Are you willing to risk your friendship to get what you want? If not, stay where you are, do nothing. Think long and hard about how it will feel to see those other guys sniffing around her door before you decide. Will you get over it? If not, just go for it with the understanding that things will never be the same again no matter what she chooses. Making a move is redefining the relationship and your role in it. I would only do this if she isn't one of your best friends. You will of course need friends outside of the relationship.
Wait until she wants to progress to the next stage, that's where the fun starts.
Its not worth it!