Riku is highly laid back yet he acts like a child in some aspects. Examples are when Luffy starts his shenanigans he is the first to join in playing with Usopp, Chopper and Luffy. However he is usually like the girls when it comes to Franky not impressed. Due to him growing up around many Okama, Iva and the revolutionaries. He knows how to talk to girls easily. He is also a Honorary "Okama" due to him being under Ivankovs Tutelage. He can stand Okama easily making friends with them. He found the blood donors on fishman island for Sanji.