Oliver smiled lightly when he saw Diana rise. The Justice League was actually happening here. Oliver was happy about that; at the same time, he knew they were needed here. That was what concerned him.
Oliver took a moment to study everyone that followed. He knew a few of them very well; others, not so much. But there would be time for that. Listening to Diana, he couldn't help but approve of her rule. He noticed the smile and decided he ask about it later. Frowning slightly, Oliver's gaze fell to the door. He wondered where Clark had gotten to, hopefully his friend would show up soon.
"Thanks Diana," Oliver smiled, looking to his friend for a moment. Then he turned back to the others, focusing on them. "I'm sure most of you here know me, or at least a version of me that exists in the world," he added. "I'm Oliver Queen, better known as the Green Arrow," Oliver continued. "In my world, I've just started to from the Justice League. I thought, with Diana's help that it would be could to continue that here. This town needs us and I'm thinking we'd be stronger together than apart."