As a Civilian
She is seen wearing a Grey Blazer that doesn't go down all the way with a white shirt underneath. She has jean shorts.
As Ladybug. Edit
She is seen with spots only on her torso and shoulders while her arms and legs are red. Her mask is also red with no spots. She has no yo-yo according to the PV trailer. She has her earrings so she can transform into Ladybug