hey, SkyBlue - cool name!!
Love your avatar too!
Woo, a flight attendant! Very cool!
Well, you can talk about dreams and interests or wannabe travels, or music or films/series/TV shows you like...
Often, people just like to talk about themselves and their interests... So if you find someone or a few who seem to have same interests/hobbies/taste in music/films, it can go wayy easier!
If you ever want to live abroad/travel/live internationally/go skydiving/do any of the things/hobbies other people mention, you can get a lot of valuable info from people who *have* lived abroad/done just that...
If someone says eg they want to be stationed/work in Australia, you can talk about Australia, or any recent events there... Or anything else that might be of interest to them, according to their hobbies or what you know of them...
Weather/hurricanes/world events/news can be of interest to people in flight industry too.. eg 'Did you hear about what happened...?'
There are probably websites with info related to flight industry too... Or eg who's hiring where etc. (I'd probably gossip about Richard Branson, sigh!
)
You can also learn about people's lives and life experience... And it may come helpful later on elsewhere in life... You're still young and have plenty of time to do many of those things!!
6 months is nothing, if you keep it mysterious and vague enough, they don't know if you had a fab glamorous life or what!
Also things from class - 'what did you think about (what Professor X said/the last class/assignment/lecture...?)' or recent events at the school/course... or local events, what's happening where you live, any events/music/...?
You can also give compliments on people's dresses and hairdos (ideally genuine!) or what they said in class etc.
Good luck & hope things go well!!