speaking

If you are looking for a budgie to talk, will it happen if you have 2 Budgies? In the parrot world does it take just a single parrot to make or break success of talking?

so lolas got hello down now, she pretty much just said it when she wanted at first but no i have her saying it on command (for banana of course) but i want to introduce a new word, now when ever i get the banana she just instantly says hello lol. whats the steps for introducing the new word...