So you've finished that placement. What do you do next?
There are several things you can do which ensure that you stay on good terms with the people that gave you the placement and perhaps they'll even offer to take/keep you on in future.
Ask for feedback
Whether you think your placement went well or bad, it's good to see what you did right and what you did wrong.
This will ensure that whatever future placement/job you decide to take on, you can take the previous advice into account and make those improvements count wherever you move to.
Ask for more opportunities
Don't be afraid to ask for more future work. A lot of the employees there probably did the same. Just ask if there are any opportunities in future and if they think you did a good enough job, they may consider you.
Having already undertaken a placement for them means you've got a nice foot in the door, so there's no cumbersome application process to undertake. Sometimes companies will take on placement students on a part time basis offering to pay them for work they do provide the company with.
Keep in contact
Keep in contact even if they don't keep you on. Ask if they have any jobs going or more placements spare from time to time. Just don't be that annoying person who emails or phones everyday though. They may move you to their junk pile/block your number.
Ask for contacts
Depending on the company you work with, they may have other contacts in the sector that are looking for placements themselves. Ask for these contacts, you never know, the current placement you're finishing with may pass on a good word.
So finishing a placement doesn't mean finishing for good. There are plenty of opportunities and options after you finish.