I have no idea what "five phases" mean and I have been around awhile LOL but I do know that talking and getting to know her is a great start as well as dating her. You really take things as they come and let things fall into place on their own as all relationships are different and have their own paths. There is no schedule or guidelines to follow when dating. Just relax and have fun with it - don't be so uptight, scheduled or in control - take things as they come.
ask her who she likes
Get to know her.
this is simple get to know this girl
If a guy look at the girl twice then it means she likes the girl
That means he girl likes you and answer that question by telling the girl something she likes to do. If you don't know what the girl likes to do then you're a goner
if she talks to you and touches you on the leg or something like that. then that means she likes you.
I gess the same way you can tell if a normal girl likes you.
Ask her.
ask her out
If no on likes you
go to 'ask' and type in 'how do you know if a girl likes you' you should find all you need there
just ask her if she likes you