If you just signed up, you're probably wondering where you enter your PayPal email. You enter it in the Payment Center - but not right away. You have to have an Available for Payment balance of $7.50 or more before you can add your PayPal account.
If you go to the Payment Center in the app (tap the menu button at the top left and select Payment Center), you'll see a screen that shows your lifetime earnings, and two sections for balances. If we've paid you already, you'll also see your payment history.
You'll also see a note that says "You must have at least $7.50 available before you may request a payment."
Once your "Available for Payment" balance is $7.50 or more, you'll see a space to enter your PayPal email and a button that lets you request payment.
That's when and where you enter your PayPal email.