River slowly exhaled and relaxed further in his seat as Brent finished his challenge, and watched Levi next as he too completed his task. The Hogwartians were done, and he couldn't be more happy for them. He was proud of them. The Healer sat straighter in his seat as Brent walked past him, and offered the boy a grin and a quick, "Well done, Mr Westwood." Ilvermorny should be proud of him too, considering that he's technically representing the two institutions. The Healer procured an ice pack from his satchel, applied a freezing charm on it and placed it on the boy's nape. "Keep it on to help you cool down. Call me if you need anything else," he said giving the Slytherin a quick squeeze on the shoulder and left him with his friends.

Levi came next, and River was quiet as he followed him with his eyes, and watch him snatch two water bottles from an unsuspecting supporter. The man approached the dumbfounded first year, gave away his unopened drink to the poor student and followed Levi to where he sat. "Deep breaths, Levi." he said, procuring another ice-pack, freezing it with a charm, and gently placed it on the boy's nape. "We're proud of you," River would've corrected himself to tell the young man that he was proud of him. What stopped him from doing so was the feeling that the kid didn't want him around...or hear anything from him aside from instructions and orders from a Healer. River took a step back to let the Gryffindor spend some alone time with Daisy-- another student who he thought has issues with him, and looked around to see if any of the American participants were done too.

By doing so, he caught Olivia looking at him, and the Healer returned her gaze with a grin and a nod. He too, gave the same to her company, the Headmistress of Ilvermorny. Was she the one that Jace accidentally stunned during his first year?

...

Tough kid.

The noise around him brought him back to the present, but a few moments late to see Valerie Gray drop to the ground. One doesn't have to be a Healer to know what was going on, so in a heartbeat, River was on his feet and quickly got to where the female competitor had fainted. The Healer knelt beside her with his black robe pooling around him and started to loosen up her clothing, allowing more air to circulate. A piercing whistle was heard, and a black Newfoundland found his way to his master's side waiting for his command. A snap and point to Valerie's knees were all it took for the furry first-aider to lift her leg joints with its snout and wiggled his way underneath her legs. It would've been easier to procure a pillow for the job, but Roscoe was stuffier. "Put her down, flat on the ground." River's voice was gentle, but his tone was of strong command as he addressed Lachlan. "Give her space to breathe and get me two bottles of water. Quickly." A white face towel was conjured, doused in cold water, and River started wiping the girl's face with it, then her arms and hands next.

People of Hogwarts would know that during emergencies, River tends to hyperfocus on the situation, and completely ignore everything else. They could do introductions later if the boy feels like it.