[OOC: Hey, no, the more the merrier! It makes sense for Karl to be included.]
Hello Karl. I would assume the fact you can read this means that whatever is influencing the others has not affected your perceptions.
I do not know how the individual would think; I assume their thoughts would be 'wrong', dependent on how well they are masking their enjoyment of the proceedings and replicating the other humans (should my current theory be correct)? Is that any use to you?
I would be grateful if you would not share this information with those still under the effects of whatever this is. I do not like excluding them but we cannot trust them not to mess things up.