facebook games/apps ?

[Alexa]

so the other day i was playing a facebook game, and i added 28 neighbours on the game. once id got bored i went to my home page and got a friend request from a random i added on the game.
how did they know what my name was? or where to find me?
how do people do that? how can you find someone like that throu a game??
thank you very much
all 28 friends was added on the game not my fb page. i got one friend request from a random game player, no name or email was sent with the buddie request, thats why im confused

[anonymous]

when you send someone a request in a game, it is sent from your name, not your username in the game, since it is sent through your "request" page on your homepage. All they had to do was click your name and "add as friend."