Before you do anything, ask yourself if she is really worth to
be ur stead. Or u still need time to think whether you really like
her.
dun drag too long if not it's harder to strike and you will just be
friends forever in her mind. you will also find it much harder to
tell her since the 'friendship' is already too deep.
u dun have to call her and chat her up everyday. Give her time and
space to breathe. if she likes you she will definitely be yours for
sure.
you just have to do it sooner or later. Thinking too much doesn't
change the situation. Ask her out alone first. Dun do anything on
the first date. Then you can see the picture much better. If she
really likes you, she definitely likes going out with you alone.
Also, when you ask her out, you are also giving her hints that you
like her.
If she gives unbelievable excuses, then u may want to try a second
time. If second time also like that, forget her la bro. Dun need to
keep trying cos it dun always work. Besides, you will come off as a
pest which is even worse than before.