A classic meeting room is an individual, soundproofed space with a large conference table and chairs. More modern meeting rooms may offer you tea, coffee, paper and pencils, and equipment for giving presentations. Find out whether the venue will be able to provide you with tea and water. The majority of meeting rooms have self-service facilities.
Dance is about movement. The venue for this kind of event should be spacious enough that everybody participating can feel free and not have to worry about bumping into one another. You might want to check whether it includes a changing room, shower, and toilet.