One of the joys of working for an organisation like the London Baptist Association is the sheer diversity of churches you get to work with. Of course it raises a unique set of issues and questions too, but as someone who gets to operate in a "translocal" role it's kind of fun getting to see how different churches do things, express worship and seek to do mission in London.
Last night I was at a pre-dominantly African congregation (who are often French speaking too, although I stuck to English!). I was given the whole of the 2 hour service to do worship and speak (and introduced a bit of alt-worship style with a few stations, candles etc.). I think it was a learning experience for me and the church!