A girl with pigtails proved a friend to a friend that she has the most skilled female mouth throughout the institute

You can talk a lot, in some way to exhort the interlocutor and still cannot be achieved that he unconditionally believe you. Therefore, it would be much easier and more practical to chat less and do more. As this girl with pigtails, who has just proved her friend to her friend, that she has the most skilled female mouth throughout the institute, and maybe even in the city.