Budgies do not talk like parrots - they do not exactly mimic the human voice. However, they can learn to repeat sounds, and if you repeat one word often enough, your budgie should will begin to make a sound similar to that word. Make a tape of yourself repeating one word over and over, and leave it playing beside the cage...
If you are prepared to give your budgie the time it takes to teach a word, a sentence and eventually whole verses of nursery rhymes, it will give you hours and hours of amusement as you listen to its repertoire.
The first words are important. Once a budgerigar has begun to copy a word, it will quickly add to its repertoire, but it often takes a while before it masters is first couple of words. It is best to choose something quite simple to start, which is why pretty boy is so popular. It is best if one person, preferably female, because the females voice is pitched higher than the male, so it takes on the task of teaching the first words, so that the bird is not confused. If time is of the essence, then a tape recorder can be used. If the teacher records, for example "pretty boy", on a tape for as many times as the tape will allow, this can be played near the cage, even when no one is in the house. Once the budgie has learned the first phrase, another can be added. Nursery rhymes are popular and, in general consist of simple words, but a budgerigar in Wales is on record as being able to say "Llanfairpwllgwyngyllgogerychwrndrobwll llantisilogogogoch"
A word of warning, a budgie will not talk if it has other budgies to talk to. It must be kept as a single pet for it to learn to talk, and it will be very unlikely for it to talk if training is not started before it is four months old. It has been known but the likelihood is very remote.
As well as speech, budgies can be taught to wolf whistle. The wolf whistle is a good place to start. In this case, it is a man who is usually better teacher. A tune should be chosen which has a simple opening phrase and this is repeated until the budgerigar can remember and reproduce it with ease. Once this has been achieved, a new section is added and both are always whistled together, until the budgie has learned the two, then another and another until the whole tune is mastered. No musical box can give the same thrill as a budgie greeting you with a happy tune when you return to your home, and it will be a source of constant amusement to your the people calling at your home.

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