Hi Stephan,
I don’t want to use tricks to cheat Google, what I'm trying to figure out is just if "Capitalizing Some Keyword in Italian Language", that is not grammatically correct (for the Italian Language, please see my reply to Ryan) can cause me a better click-through-rate or a penalization.
Just want to know if some of you try this in organic SERPs and not only in AdWords ads, or faced the same problem in his SEO work.
Thank you so much for your answer!