What to wear?
For classes during the week, casual, comfortable clothing is best. Light layers are a good idea even in winter, since you will soon warm up. Shoes that fit your feet well, with smooth soles are best.
As you become more of a regular dancer, you may wish to buy dance shoes, which will really aid your dancing. Ask Coralie or any Jive+ crew about stockists or ordering on-line.
For freestyles, most people like to dress up a bit, and so smarter trousers for both, or dresses/skirts and often sparkly or other evening attire is popular for ladies.