As Paul says, the evening must be structured, it's pointless going to a 'hands on' with nothing planned because all that will happen is sitting and talking.
Personally I would rename it a 'Workshop.' where work is carried out. There must a designated subject to be worked on that evening, who will be 'instructing' (for want of a better word) There are a whole bunch of things and I would start at the beginning,,,,TOOLS!!! this could be broken down even further, gouges one week, scrapers skews the next week, sharpening the following week then when they are mastered then get onto proper turning, spindle, bowls etc. etc.
After all, this is what a club is about, to advance the skills, it's fine watching demonstrators every month but perfecting your own skills means practice and doing that on your own at home only promotes bad habits, practicing with other members present allows criticism and bad practice to be put right and it encourages rapid advancement of those skills.
Well that's what I think anyway....
Andy