Giving the two Guards a simple training on how this huge Ballista is operated, the Trainer approached the ballista once more and gestured for the lady to go on the other side, specifically near the man. Raising his two gesturing fingers (On one hand.) And hovering them near an eye as a hint, pointing those fingers towards the Ballista after, it was made clear that he wants them to pay attention. This time however he didn't speak a word since he was clear that no one here but the other trainer in the crowd, understands him.
Reaching for a Crate of ammunition around 5 meters behind the Ballista standing 2 feet tall on the right, he grabbed one out of the Crate carrying 30 and proceeded to mount it on this wonderful piece of weaponry.