What are the chances of me being kept on?

[Callum.]

He said it's a temp placement -facepalm-

Anyway...work your hardest all the time you are there. Don't slack, don't look bored, be enthusiastic and work at 110% and you will have a good chance. But don't be put off if you're not.

Facepalm for you.

She's saying that she knows it's a temp job from the second line, but is assuming it's part time which is most likely correct. So she is then encouraging her to use her shifts wisely and snap up the extra work to get in with a better chance of being kept on.

I think, which she would be totally correct on.