One more thing about Kal's reaction to Lois's smiling and laughing (and crying). Maybe the translator translates some of Lois's emotions, too? Maybe that is why Kal finds Lois's smile and laugh so extraordinary, because it does translate some of the emotions involved and triggers some emotional response in Kal?
And of course this works so well because it is
Lois who smiles and laughs. Like Happygirl pointed out, the essence of Clark (and therefore, part of the essence of Kal) is that he loves Lois. (Actually, I think it was Rac who said it here just recently, even though I'm sure that others have said it here before.) Because Clark (and Kal) is "genetically programmed" to respond to Lois, her emotions have an enormous impact on him.
(Oh, and... Lord Nor.
Not much looking forward to seeing a lot more of him....)
Ann
