(military) Assembled and in formation, prepared for inspection, to receive orders, etc.
Marching or riding as part of a parade.
On public display, shown in a way that attracts attention.
Source: en.wiktionary.orgIt runs in the family. And don't expect me to be ashamed. Yankees lock away loony relatives, but down here, we prop 'em up on parade floats and march 'em through the middle of town. Susan Elizabeth Phillips
We do a lot of bird-watching up in the country, but we almost never have a chance to people-watch. There simply aren't enough human beings up here: there is nowhere you can park yourself with a cup of coffee and observe the species on parade. Susan Orlean
Language is the dress of thought every time you talk your mind is on parade. Samuel Johnson