Lala has a bright and cheerful personality, and is often seen bouncing off the walls. As her house is a restaurant, she has a habit of saying her informal catchphrase Capisce! (Kashikoma!) when taking requests. Lala has a very loud speaking voice which she is very conscious about; when she is singing, she tends to be very quiet due to this. It seems that she can only gain the courage to sing loudly when performing in PriPara.
(Source: PriPara Wiki)