Originally Posted by betta lover1507
if am close to them they bite me. and i didn't get the last part, what?
It will be harder because you have two birds who appear to be bonded to one another. Have you tried the touch training yet? That is the fastest and best technique to tame a bird.
Do they like millet spray? Most cockatiels adore it, if they like it try using a long piece of millet and holding the very tip of the stem so you are not too close when they're eating it. Once they feel more confident with that move your hand closer and closer until you can have your hand about 4 inches from them. Make sure that's the only time they get millet so they are excited about it. At first they might not realize what it is but it's a birds nature to beak something near their face and they'll soon realize they love it.
Make sure not to over due it, if they are doing really good give them a break for 30 minutes or an hour so you're stopping on good terms. A lot of people(I've even done this) will get excited that the bird is doing good and keep pushing until they gone past the birds comfort level, this will break the birds trust with you. If this does happen take your hand back to where the bird is ok and do it correct one or two times then give them a break.
Make sure to never end on a bad note, you always want to end good because it makes a big impression on your bird. Sometimes it helps to talk softly or whistle little songs while training cockatiels.