Express True Feelings to the One You Think Is Just a Friend

Got eyes on a friend? Maybe you should tell her/him how you feel.

Steps

Remember throughout it all you are friends. Make sure you really want to take these steps, things will probably change
Speak to her/him like she/he is human.
Be honest. Telling lies will get you nowhere. Say what you feel in your heart.
Express every emotion and describe it. Be careful though, straight up telling a girl/guy you love her/him will probably creep her/him out a bit
Talk to her/him more often and find out what she/he likes.
Make her/him feel comfortable around you.
Then ask her/him out as a friend and let your relationship build on from there.

Asking someone to go out with you over the phone, by texting, or over the web is considered wimpy.
Confront the person face to face. Don't do it over the phone.
If she/he says she/he isn't interested, don't keep pursuing a relationship, this will only ruin the friendship.
Be brave. Loving someone is always risky, but men/women who have courage will find love...eventually.
If you really love her/him, with all your heart, then this should be no problem!

If she/he doesn't like you doesn't love you despite all that you have done, you have to remember she/he was a friend first and foremost. She/he liked being your friend and maybe she/he just doesn't feel that way about you yet.
Don't overdo it, at least not at first. Telling her/him how much you love her/him is a very good way to gross her/him out. Especially if she/he doesn't know you well. Stick with a simple "I like you" at first.