The two biggest things that determine how it will go are the trucks appearance and your attitude. If the truck looks good, tires are good etc and you’re not overweight odds are it’ll go ok even if they find something small. That’s assuming you have all the proper credentials to be operating.
For piece of mind make sure you have the paperwork you’re supposed to, it’s all in a binder or something that’s quick and easy to show them. Get familiar with it so when they ask you can whip the document out for them. Next make sure you have the standard safety equipment, fire extinguisher, triangles, spare fuses etc. Your name and numbers are legible on the truck, it’s clean, not leaking fluids or pissing air.
Or do like I do and go around them....lol