help what do i do for my first job interview

I applied for McDonald's around 1 or 2 days ago (I'm in Australia). I'm not sure if this is normal or not for McDonald's but i already uploaded my resume and got my parent to do the parental consent form and as soon as i uploaded it, the McHire team wtv thing emailed me saying that McDonald's would like to have an interview with me so i scheduled for one. Obviously I'm nervous for it since it's my first interview but does anyone know what kind of questions they ask and how to answer them or how to look the part for them etc etc?