When you type sentences for her, Lola will learn and say things back to you. The more you type, the more words she will know. She will probably start to say some pretty crazy things. Try telling her a story. She likes stories a lot. You can shift-click the green flag for 'Turbo Mode' if she starts getting slow to respond.
This is based on my earlier project, Mimi learns from you. Mimi can only learn 300 words; but Lola can learn a lot more than that, because she uses packed lists instead of clones to store her knowledge.