Starting Lily's Path?

[Kazhal]

I tried to go down her path and somehow wound up on Rin's again. I'm not sure now exactly how to start hers...

[mongooseman7]

Take her side in the argument with Shizune, don't push yourself on the track, head into town when given the choice (don't go to the library.) I can't think of anything else. Good luck. Hope you love Lilly's route. I did.

[yuastnav]

Sort of a spoiler: For the walkthroughs for act 1 there is this thread. Some of the decision you make do not really matter, others do.
It should be not all to difficult to find out which matter.

[Deltamon]

There's only one decision separating Lilly's and Hanako's path (to go visit either town or library, should be obvious which one is which). Just try to spend time with both of them as much as you can (especially Hanako at first) and things should be fine.