Alien Faucet today says:
"You balance is over 20000 and you can withdraw your Bitcoins.
Please go to your Account page and click Verify Payment button."
FAQ says:
"We pay out every Tuesdays to your bitcoin wallet. We pay out ALL balances over 20000 satoshi. It is automatic, there's nothing you need to do."
To which of this I must trust?
Every week when your balance exceeds 20,000 you have to verify payment via email. Once you have done that, they'll pay you on the designated day (Tuesday).