One could argue that Raven's normal expression was hardly that much friendlier. Given how calm and controlled she usually was. But she's been getting a bit more expressive, as she's opened up more.

Right now though, she is still very much in business mode. Turning her attention to the group of people where the shout had come from. One-hand flung out with dark-energy to shield and separate the people from the larger animals while she let Yondu and his arrow take care of them. "Over here! This way!" She calls to the group.