I think it sounds cool.
I suspect the message the teacher is trying to send with this, is that kids need to learn to reach out to people around them, to show an interest in them. It also keeps the kids on their toes and makes them pay attention. And stops the exam from being too boring.
I remember reading about a Latin teacher back in the 70s, who wrote at the top of an exam paper he set, "soc et tuem."
I also bought a copy of "The Essential 55" by Ron Clark, a US teacher who wrote a rule book for teachers on how to do it well. He himself has been acclaimed for his success as a teacher. One of his rules is "no cheezels!" He makes a big point of confiscating all cheezels, of making a big fuss about it. He says it's not because he hates cheezels, he's just doing it purely to be eccentric and to give the kids something to giggle about.
As for this teacher giving credit for these answers - if the exam is at all connected with social skills then it makes sense. Otherwise, she doesn't say exactly how many bonus points she will give for those answers, does she? Sounds like she's leaving it open to her discretion...
Marg