I was asked to attend a USMC Conference at HQMC PP&O. I was an E-7, the lowest rank there. But I was the Navy subject matter expert for that conference. I damn near laughed out loud when a Marine LtCol went around and asked for everyone's coffee requests. To be fair, he was responsible for hosting the conference. But, had I been the host, I would have asked a Petty Officer to volunteer to handle refreshments and then give him a 72 hour liberty, (weekend of his choice) and Letter of Appreciation. I would have had a lot of volunteers.
I was at the Pentagon for a couple of weeks, in the individual ready reserve, for a technical assignment as a Meteorologist, as an Army 1st Lt. (O2)
Excellent leadership. Easy to get volunteers when they know you'll take care of them.