The more you interact with someone, the more they'll like you, says David Lieberman, an expert in human behaviour. He's right actually. Several studies show repeated exposure to practically any stimulus makes us like it more (the only time it doesn't hold true is if our initial reaction to it is negative). So forget about being aloof, evasive, and unavailable in the beginning. Instead, find lots of excuses to spend time with him.
Now, pay attention, because this is the tricky part. Just when you're convinced you've won them over and they like you, start being a little less available. And then even less, until they hardly see you at all.

You've now effectively instigated the 'law of scarcity'. We all know this one: people want what they can't have and by constantly being available, you diminish your value. If every time you walked outside your front door there was a huge pile of diamonds to step over, you'd hardly see them as precious would you? The law of scarcity only makes them want you. Be around and then not around and they'll want and like you. I'm stating the obvious here, but liking someone is important.

We talk endlessly about chemistry, passion, sexual attraction, and even more about love, yet the word 'like' rarely gets a mention. Opposites don't attract long-term; we search for similarities in a partner. Most of us can't see the point in hanging around friends we don't like, so why do it with a lover? Liking someone is more important long-term than actually loving them. It's not just similarities in our personalities that count. If you go out with someone who looks like you, they're four times more likely to fall in love with you!