Recruits stand upon the yellow footprints outside of Receiving Company April 23 aboard Marine Corps Recruit Depot San Diego. The moment the recruits step foot on the depot, they stand on the yellow footprints where they receive a speech on how to stand at the position of attention. - Recruits stand upon the yellow footprints outside of Receiving Company April 23 aboard Marine Corps Recruit Depot San Diego. The moment the recruits step foot on the depot, they stand on the yellow footprints where they receive a speech on how to stand at the position of attention.