Some tricks specified on the Dark Orkut online service include : how to add someone on your Crush list on Okurt, send glitter scraps using Orkut picture scraps application. Another trick is to write your name in stylish Orkut fonts.
She may/may not have an Orkut account, but you have to be careful because someone could be posing as her (using her name and picture, but not actually her) and she might want it to be private. And I am not totally sure how old she is, but she may be underage (you have to be 18 to use Orkut)
You can activate chat on Orkut by clicking the sign into chat in the Orkut homepage. You can see which of your friends and family are online by checking the chat roster at the bottom right of the page. To enable chat on Orkut you need to verify your email address.