You dont 'make' them love you back. It just happens
You need to be attractive, have lots of money, or be popular. That's what everyone in this shallow world cares about sadly.
You can't...it just happens the least you expect it. You can't force love. Right time=right person. Now is just isn't your time. Don't worry...it'll all be worth the wait.
Be yourself. Find what makes you special, and they can't help but notice it. Oh, and it helps if you discover what makes her special too.
Shouldn't your question be 'how do I get the girl I love to love me back?' Its kind of shallow to think there's a formula or something to make them love you, women are all different, but I'd say be honest and genuine 100% of the time. Though this is a guys perspective also, so take it with a grain of salt...
look for the inflate hole..usually on the back of the head.