DISCLAIMER!
This is a speaking practice event!
It means - our purpose is not to teach you new vocabulary or grammar (though it will happen, eventually, along the way) but to give you the occasion and the "stage" to speak - while being there for you to help you out with the right words, if you need it! ;)
For this reason - it's better to have at least some learning under your belt to make the best of it! I mean - we have a group for beginners, but they are not zero beginners!