Can't talk to the scribe for quest "Mightier than the Sword"

[Skidrow]

Got the quest "Mightier than the Sword" (Mächtiger als das Schwert), where I have to talk to the scripe (Schreiber) in Uschitze to learn reading. I found hin and he is sitting in his home and writing. But I can't talk to him. My only option ist pickpocketing ...........

What can I do?
I mean it's not so that learn to read is something unimportant in that game...