If you separate the babies into individual cages (and you should, for several reasons) you can probably tame them quite nicely.

 

 

I'm sure the handfeeding is pretty much the same, formula from a dropper or syringe.  You might want to check with a lovie breeder on how often/age of bird...I would imagine its about the same though :)

 

Oh, I forgot to add, if you need the email of a lovie breeder just let me know.  I know one, i know it's just my word for it, but i think she's great!  It's the breeder of my Tiki, and i know her really well, and know that she wouldn't mind twenty Q's from someone just starting out :)