assuming you already log-in or sign in which you ever prefer.
step 1.
click on the application
step 2.
click on edit application
step 3.
choose authorized on the top right corner of the edit application page, its default is recent application, change it to authorized.
step 4.
look for twitter and then click on its edit setting
step 5.
on edit settings tab, go to additional permissions, uncheck the publish recent activity (one line stories) to my wall.
and thats how it is done!
just comment if you are having a problem, ill be glad to answer it
