Okay so I would just use E-Mail, but I have four or five keys that I bought. One was for a dedi server, three are for friends, and one was mine. I am worried if I tried to use E-Mail it would do something funky.
So I just went and did Transfer Via Key.
It said it worked. But now even after restarting Steam, it says "BUY $9.99" on the product page. Am I missing something? Thx