Please bring clean, indoor, non-marking shoes and wear clothes that are comfortable to dance in. Generally shoes with little to no tread work best as they are more slippery. High heels are not recommended for beginners. For more advice, see these websites:
https://www.torontolindyhop.com/toronto-lindy-hop-blog/what-are-key-components-to-a-good-dance-shoe/
https://swingdance.la/shoes-for-swing-dancing/