It isn't a lecture.
The RLF is not a tutor, but a professional writer.
The session will probably be one to one, but I don't mind if two people come together. (There wouldn't be room, in my small office, for more than two.)
If it's your first visit, the first thing you'll be asked to do, is to fill in a couple of short forms. These are purely for the use of the Royal Literary Fund in reviewing its service. The information you give in them is not shared with the University or any other body.
The rest of the session pretty much depends on you. If you're having trouble planning an essay, then much scrap paper might be scribbled over as various approaches are tried - and the student leaves with a better idea of how to put the essay together.
If you don't understand the question, then Google may be consulted, and dictionaries, and brains may be stormed, until the problem becomes clearer.
If you don't know why your marks have been falling, or why they're so low, then your tutors' comments might be studied, and various ways suggested that you might improve your next essay.
DO I NEED TO BRING ANYTHING WITH ME TO AN RLF CONSULT?
Some recently marked essays may be useful. You can bring current work along on paper or on a data-stick.