Your first day will be very introductory, and they likely will give you your objectives. The best advice would be positive, self starting, and supportive, with a passion for traveling.
Flight attendants typically do the following:
- Participate in preflight briefings with the pilots, to discuss cabin conditions and flight details
- Conduct preflight inspections of emergency equipment
- Demonstrate the use of safety equipment and emergency equipment
- Ensure that passengers have their seatbelts fastened when required and that all other safety requirements are observed
- Serve and sell beverages, meals, or snacks
- Take care of passengers' needs, particularly those with special needs
- Reassure passengers during the flight, such as when the aircraft hits turbulence
- Administer and coordinate emergency medical care, as needed
- Provide direction to passengers, including how to evacuate the aircraft in an emergency
If I have understood your question correctly, you are trying to understand what someone is looking for on a resume, and in person, when you are applying to be a Flight Attendant.
In my time as a Recruiter, I have hired people on behalf of the airline industry so have first hand experience in what firms are looking for, although it will differ from company to company.
On a resume, you will want to have the focus be on a combination of your exposure to customer service experience as well as highlighting any experience that shows you have a good attention to detail and, ideally, some insight to any type of leadership role or responsibilities you have had. Highlight your successes and show any promotions you have achieved, no matter whether you feel the job is relevant to being a Flight Attendant or not, as when a firm reinvests in anyone, their value increases.
PLEASE NOTE: You do not have to stick to a one page resume but it is not a problem if that is all the space you need.
In person (whether it be over the phone or face to face) communication is a very important part of a Flight Attendants role, and representing the firm who employs you to a high standard is imperative as you will be the "face" of the company so have to hold yourself to a continual high standard at all times. Speak clearly, try to avoid using words or terms that would not be considered professional and remember, some airlines have very high end clientele (i.e. the Washington Press Core to the White House, NBA Teams, etc.) so speaking correctly so you can be understood by anyone, is very important. Secondly, conduct yourself professionally, but with a warm and friendly demeanor. As you are going to be interacting with customers directly, a positive approach to any situation will always result in more positive results, but always within the confines of professional behavior. When attending an interview where you will be seen, either in person or over an online video call, always dress professionally and never wear jeans to an interview. Dress for the job you want, as the saying goes.
Have examples (stories) ready to present that highlight your abilities in handling both positive and negative customer situations. Research the firm, the role and what safety aspects are involved in a Flight Attendants role.
Many people mistakenly believe that Flight Attendants are the equivalent to restaurant servers but in the sky. This is far from true. Serving / attending to the customers on flights is only a part of a Flight Attendants role as the knowledge and ability to deal with customers safety in a variety of situations is a large part of the role, so being fully aware of what will be expected of you for whichever company / companies you have applied to is also a crucial step in preparing.
Show your confident side as dealing with customers so they have an enjoyable, and safe, flight experience, requires the customer to respect you and if you are not confident in yourself then the customer, and the interviewers, will not be confident in you.
I wish you the best as you move forward.