Oliver barely contained his laughter when the kid kicked Barton in the shin before running away. He liked that kid. She kind of reminded him of Mia, with that spunk. Lian probably would have done it, too.
Clint deserved it. He was annoying prick and he needed to stop thinking like a S.H.I.E.L.D. drone. Not everyone ever was out to get you. In fact, of all the people involved in this the situation, Oliver's instincts generally told him to be most skeptical of the long-time spy. But Barton was an Avenger, and they were thrown into this situation together, and this situation would require teamwork from everyone. So.
"I'll need your horse," Ollie said to the man. GA turned to address the rest of the group, "One of us should be the cowboy; on the street, keeping attracting their attention," he said. "Three should be able to use that time before they realize to our advantage."
Normally GA didn't phrase his plans with such a question mark on the end. Normally GA didn't discuss his plans this much. This was not his norm. As for the general store, he was more than willing to follow the group's lead there.