Haven’t done the second stage of the interview yet but for the first stage the virtual interview all they did was ask a few questions about yourself regarding your family and hobbies. And also 2 questions about how you would be a good fit for REX and what being a flight attendant means to you.
I’ve gotten into the second stage and got the email the next day regarding the group interview so I think all you really need to do is smile a lot and be bubbly for the virtual. Not 100% sure if just anyone got through the first stage or not.