Have them with you in a room where you are always sitting and chatting. The better they hear you, the better their imitation skills will improve. Prioritized vocabulary should be practiced continuously. Once the target word is learned, move on to the next one. During the day, it is necessary to say the word you have chosen repeatedly without getting bored and tired. If there is a sound you want to teach, rather than a word, you should make the same sound repeatedly.  If you don’t have time, you can record your voice and play the same word repeatedly while you are away. While they say that women talk a lot, male budgies talk more and faster. So, if you have a male budgie, you have a better chance!