They will learn to talk so that they can fit into the household as they would into a flock in the wild. However, your bird will only learn to talk if it recognizes that it's how you communicate.
[header] How to encourage an african grey parrot to speak [title] Talk to your bird regularly. [step] Make it a habit to speak to your bird even before you start training it to mimic what you say. African greys are social birds who want to interact with you.