Well,
I don't have any particular 'Clark is a cutie' moments...only moments.
Like the one in Brutal Youth, just after he takes in Lois' revelation about his molecular structure.
or those in Home Is Where The Hurt Is, when Lois says "In the end, men run away, that's a thing I learned from childhood" (or something like that) and Clark tries to persuade her that "not everyone does", meaning he wouldn't. I like the dialog's double level in this scene.
Same thing with this second one, same episode, after L&C saw Sam's add on tv. Clark's remark on Lois family caused her insecurities to (re)surface. So he has to reassure her and tell her he's not likely to back up from their relationship... the 'not a chance' scene.
Carole