Vacation scheme do’s and don’ts

I am looking forward to a couple of vacation schemes. Does anyone have any advice as to how to impress?

I have put in loads of effort to get a on a couple of vacation schemes, but I haven’t really thought about what I need to do to impress, or at least not damage my chances of a training contract, on the vac scheme itself.

Do I introduce myself to the partner? Do I invest in a sharp suit? That kind of thing.