Anna looks at her pack with angry eyes because they won't let her and Kenneth breathe for a minute because she's learning how to communicate with her father who passed away and then on top of that she's the alpha of the pack even throughout her years of being on Earth her father was the pack leader she doesn't know how to lead the pack without some help.
Anna hisses a little bit to let them know they overdid it with her because she needs her space but they won't let her have her own space but she also knows that she needs to protect them.