This is a suggestion to have more fun in conversation groups and classes. The classical topics are way too conservative and they end up using a limited vocabulary. Here is a free website with a really diverse set of questions, that not only challenges your vocabulary for self-expression but also may end up bringing you closer to your conversing partner. There are now more than 1000 topics on it, brows at random with this link https://jous.app/random . Let me know if you used it and it helped.