“Of course. You have asked students to come prepared which means they need, also, to contribute.
“Some students are shy and don’t like being asked direct questions, but tell me a work or research situation in which it is okay to tell the boss/researcher you have no interest in answering.
“Just don’t be aggressive or insulting.”
“Yes.. make sure you call on all students… that you give them the chance to make errors without scaring/embarrassing them, and you give them the change to rephrase their ideas.”