The moment he had heard the man's voice he had spun, keeping the shotgun down and pointed at the ground. Clint watched the man critically, ready to bring the shotgun up to bear if he proved a threat. Subtly he shifted to avoid being out of Natasha's line of fire should the situation require it. For now he'd let Natasha and Julia do the talking with this guy.
He seemed fine though and Clint relaxed a little more but that didn't mean that there wasn't someone else nearby who would jump them. Or of this guy was completely on the up and up. So he stayed wary and ready as he waited.