The video speaks for itself. The young boy sees what all the other people passing by refuse to see.
What attracts him is the higher ideal symbolized in these men in uniform. He sees expressed the moral beauty inherent in military life: the elevation of sentiments, and the willingness to shed one’s blood for a higher cause. He sees the strength for undertaking, for suffering, risking, and winning.
The Canadian troops return the salute with the "Eyes Right" command, the biggest compliment troops on parade can pay and is reserved for dignitaries in reviewing stands.