Nothing, but I would say "anasece", meaning almost the same as "kiel anaso". The meaning of "anase" and also "anasece" in English would be "duckish", I suppose, but I'm not a native english speaker. Anyway, it would take hours to discuss if there's any difference :P .
Oh I did look it up. I still ask here because the folks on duolingo have been really good at giving answers that are more approachable than most of the online texts, and also have been providing supporting examples