U cannot just go out with her, talk to her, eat dinner, watch
movie, and expect anything 2 happen.
Find out her likes, dislikes etc. For instance, if u know she likes
a certain brand of chocolate, go buy for her, no matter the
distance. In fact, the further the place from ur house/work place,
the better, because u are showing her that u are doing it for
her.
Then try 2 find out wat kind of guys she likes. If u think the
person she describes sounds a little like u, then go for it.
And i think its true what some people say, that gals like guys with
humour. Say some cold jokes, lame jokes etc, make her laugh.
Ultimately, and most importantly, u must find the right time to
confess to her. Because if a guy and a gal know each other for
quite some time liao, it will reach the stage where she will just
view u as a friend, and worst, buddy.
Gd luck