Tips for a first internship? Thanks in advance!

Make some file / space for all the knowledge they are passing to you now

Don't be afraid to ask questions or for clarification, devs are usually happy to help and it's better than you doing something weird to the code that someone else has to use paid time to fix (just don't ask stuff that can easily be found via search engine or reading the docs though, that stuff you should be doing on your own).

Assume they know more than you but if you feel they are wrong politely discuss it.

Listen a lot, talk less, try to be helpful with everyone, and if you work with a group of interns, don't be the guy who does it all! Let them work with you too! If anything goes wrong, you will be the one to blame, although you have worked so hard to get things done!

Do as they say

Thank you all!

Don't F up. Double check everything.