Reading the dating guide was good for Karl, he learnt many things, such as:

Be attentive, pretend to listen.

Show you care.

Be confident, and tell the truth about your sexual urges.

You will get laid.

At the cafe

Karl: … I see. (LOOKING PENSIVE)… Go on.
Treya: … What do you mean? That’s it.
Karl: Oh. Er… Well that was very interesting.
Treya: My family dying in an earthquake was ‘interesting’, was it?
Karl: Ah, no, no it wasn’t. I mean-
Treya: Were you even listening?
Karl: Of course I was listening! Listen, I care about you.
Treya: Go fuck yourself.
Karl: Oh yeah? Well… Would you like to watch?

sheesh, new technology eh?