Jen, I know I'm not the "experienced" you think of... but here are the "tips" I used with this little Gypsy girl!

I confined her roaming space .... made her have to be close to me at all times..... I would speak softly to her everytime I passed her, but most importantly DID NOT give her a totally secure hiding place. She had to learn that she didn't need to be totally hidden from me, that I was no harm to her!

That's my "advice" for what it is worth.