Wait until 24th and buy the christmas skill . If it's like last year itwillonlybe availablefor a week but you keep it forever. It is easier than the idioms but probably less useful except atthistimeof year.
I bought the "flirting" but it was just a waste of lingots. Well.. for now,at least, cause I never use it! I suggest idioms so you don’t waste your lingots (unless, like Fergus138287 said, you are dating).