I agree that the previous 8 were quite workable, While I think #11 suggests more surprise than "Meh"-ness, 34 suggests more "just surprise", than 12, which looks to me like "the sky is falling" and the alien is very, very worried.
#17 definitely conveys being bored, but I think that could be used for both it and verbose.
I would use #16 for HaHA, because the angles for eyes could also be taken for anger and the open mouth could be
taken for screaming in pain.
I think I would use #7 instead of #2 for applause if you can't managed to get the hands-clapping back.
But so long as the text appears if you hover, it really doesn't matter that much. Currently, on my older version safari ,they are all appearing as navy blue question marks, but the texts (and positions) is letting me choose as before.