The short answer
Spend the first five minutes showing them the finished picture, naming who is in charge, and giving each person a first task. Then check in at the first break instead of hovering. Most bad days come from unclear instructions, not from bad workers.
Show them what finished looks like
Do not start with a list of steps. Start with the end state. This garage empty by two. All of this tile in the dumpster. The truck loaded so the door closes.
People who understand the goal make good decisions when something unexpected comes up. People who only have steps come find you every ten minutes.
Name one person in charge
Say who is running the day, even if it is you, and say who to ask when that person is not around.
A crew of three with nobody in charge sorts that out on its own in about twenty minutes, and it does not always pick the way you would have.
Give each person a first task
Do not let anybody stand there waiting to be assigned. Two people start on the truck, one starts breaking down boxes, and you regroup when that is done.
The first fifteen minutes set the pace of the whole day. A slow start is very hard to speed up later.
Say the boundaries out loud
What is not going. What not to touch. Where not to park. Which door stays closed. Which pile is trash and which pile is keep.
This is where most expensive mistakes come from, and every one of them is preventable with one sentence at the start.
Check in at breaks, not over shoulders
Come back at the first break and at lunch, look at the work, and adjust. That is enough for most jobs.
Standing over people all morning slows the work and tells a good worker you do not trust them. The ones with reviews on this platform have done this before.
Correct early and plainly
If something is being done wrong, say it in the first ten minutes, not at 2 in the afternoon when half of it has to be redone.
Say the fix, not the failing. "Stack those on the pallet instead" lands better than a lecture, and it is the part that actually changes anything.
Language on a mixed crew
Short sentences and pointing beat volume. Show the first one, then let them do the second one while you watch.
If somebody on the crew speaks both languages, use them. A minute of translation at the start saves an hour of confusion.
End the day on purpose
Give a fifteen minute warning so cleanup happens before people are walking to their cars.
Pay when you said you would, say thank you, and tell the ones you would hire again that you will be in touch. The people who hear that are the people who answer your next post first.
This guide is general information, not legal, tax, or insurance advice. Rules differ by state and by situation, so talk to your own professional before you rely on it.