WILL MY TWO COCKATIEL BIRDS SING TO ME?:)?

Hi i recently got two cockateal a female and a manly. I have been doing some research and it says whether you have to cocktails that live in the same round up it is most likely that they wont sing due to the distraction of the other bird in the cage. WELL I enjoy two cockatiels and i want them to sing soooooooooooooooooooooooooooooooo badly they are babies and i wanted to know if here was any possible way i can teach them whether so plz tell me.
If you teach them little words at first and stuff they will eventually start saying those words I own a grey cockatiel and and he now says HELLO PRETTY BIRD...sometimes he will say Hello Pretty Pretty bird he also sings a bit bit of International Harvester by Craig Morgan...Hope this helps you out. :D
If you teach them to sing, they will sing.. I know that having 2 cockatiels instead of 1 does decrease the probability of getting a big talker, but that in no way stops the bids from chitchat all together.

Just sing and whistle when you are near the birds. Eventually they'll pick it up, and they may associate you with singing and sing whenever you stride by. Remember that if you teach them to whistle, they are not going to be very appropriate talkers.
Answers:    The female will not talk at adjectives and will only give little chirps and whistles. The mannish can be taught to whistle and sing and talk simply by repeating the same entity over and over again whenever you are near them. How do you know they are male and female? Have they be DNA'd? What color are they?
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