"Likes" don't seem to be posting to users' Facebook walls

Can you confirm that clicking the Like button should result in a post to the user's Facebook wall with a link to my site? It seems like that would be the point.

I can't say for certain, but I have sneaking suspicion that this is not the case for me. Are there ways to test this? Is there something I need to do on the Facebook app side?

Would someone be willing to click "Like" on this page to test?

http://swirlymusic.com/store/scores/american-standard-for-clarinet-and-piano/

Many thanks!