I agree with everything above - especially the stuff about being seen to be friendly/engaging with everyone you meet. You would be surprised what can filter back to those who make the decisions. I've known a receptionist to contact graduate recruitment to say that a certain interviewee was particularly obnoxious.
Do absolutely everything you can to research the firm. I know that sounds obvious but many candidates don't seem to know the first thing about the firm they're interviewing at. Look at the firm's own website, search for articles on The Lawyer and Legalweek online, read up on what Chambers says. You will inevitably be asked "Why Pinsents" and you absolutely have to be able to nail that question. Think of the sort of things you're looking for in a law firm (quality of training, early responsibility, good working environment, interesting clients, variety of work etc etc) and then make sure you can pick things out about Pinsents which satisfy those criteria.
Other questions you might be asked:
- why law
- why commercial law?
- why London
- why not the bar?
- what areas of the law interest you?
- what have you found difficult with your studies?
- what recent current affairs/legal decision/transactions have interested you and why?
- where do you see yourself in 5/10 years' time?
- what are your strengths/weaknesses?
- what skills do you think are needed to be a good lawyer?
- who do you most admire?
General thoughts:
- you need to know everry aspect of your CV/application form inside out. In relation to each aspect think of skills you've gained/experiences etc. What can you say about them? Its no use having been the president of your law society if you can't think of anything constructive to say about it.
- don't be afraid to take your time answering a question. Pausing before answering shows confidence, gives your brain some time to work and allows you to calm down.
- if you completely stuff up an answer, return to it later. Its very impressive if a candidate says at the end of an interview "I'd like to add/clarify something I said earlier...". Everyone is nervous but it shows confidence to be able to return to an earlier mistake and correct it.
- make sure you have some good questions to ask at the end of the interview. PLEASE avoid "what opportunities are there to travel with Pinsents?". They're a law firm, not Thomas Cook. Try turning some of the questions they asked you, onto them i.e. "Earlier, you asked me where I saw myself in 5 years time. Could you tell me where you see Pinsents in 5 years?" or even "You asked me why I chose Pinsents, perhaps you could tell me why you both decided to work here and become partners with this firm?". Questions like that show you're not just trotting out a couple of tried and trusted queries and also that you've got some balls to put some pressure on them!
Hope that helps
Chalks.