there is lot you can discuss, but the basics are tell them a little about you, your coaching experience, your netball history, why you want to coach and how much you are looking forward to the year.

then discuss about what your expectations are in relation to 

attitude, attendance, effort, respect for team and training ect.

Give them any rules you have regarding, footwear, training gear, jewellery, time you expect them to be at training and games by, who to call if unable to play, what the consequences are if they don't follow the rules or don't meet your expectations.

Ask them each about themselves. how long they have playing, why they love netball, what they want to get out of the year.

Something along those lines.

Hope that helps.