I received a compliment recently for referring to someone as 'an amiable looking cove'. I like using archaic expressions, particularly insults. I quite often call chaps binders, cads, and even rotters (tho' seldom 'absolute stinkers' - one has to draw the line somewhere).
Expressions for chaps which were common in my childhood - blokes, fellers and the like - all seem to be sliding into the abyss, leaving 'guys' as the one-size-fits-all, in much the same way our two-fingered salute has pretty much been replaced by the 'spin-on-this' finger. Damn country's going to the dogs, harrumph. And there's another you don't see a lot of nowadays. (Do people still say 'nowadays'?)