I have a few question's regarding raising little bubs

Alright here goes.
I have read here that you should feed left to right, than i read somewhere else that you should feed them right to left (when syringe feeding btw) So which way is correct and why?
The person who has Mork right now said that when he and his mate(whom passed) gave eggs they never fed them so she had to do it, but i am rather spooked about handling day old babies(i dont want to mess up their pretty little beaks, well overall i am nervous.. but i would try to keep the babies as long as possible with the parents)
I may have more questions along the way lol... but i think that should do as of right now..
WAIT.. one more lol.
When the parent is hand raising the bub, is it fine to pull it from the nest box, have it out for abit (to socialize and be handled) and give it some formula, and put it back into the nest box? so instead of having it on a full handfeeding schedule are you capable in short of giving it formula bit everyday, but still have the parent handfeed it.. or will the parent abandon it?
Thanks!