So I preached to my students the other day, and the chaplain said I should give the students a chance to respond by raising their hands or something to that effect. I said I don't find a Biblical precedent for it, so I let my theology drive my practice, the Holy Spirit will change their hearts. I leave the invitation that if they want to speak to me afterwards, I would be more than happy to counsel w/ them. But other than that, I leave it in God's hands. So how much do you allow in the way of sermon responses?