Sorry for short notice, but the pub only just got back to me. Anyway the first monthly social meetup will be this wednesday the 15th at The Two Chairman pub in Trafalgar Square. Its a very characterful place with a sofa area at the back of the first floor where we meet. The pub offers food as well as drink - and no one will be offended if you have your dinner there.
This is for all levels - and there will certainly be people of the same level as you - be they absolute beginners, tentative intermediates or hardcore 中国通 (old China hands).
So, hopefully see you there on Wednesday