hazzy has said that he lives here so most likely referring to the monthly visa. The trick is always be courteous - if they ask you to come back later just do it, never, never be late on your stamps. And as soon as legally possible apply for your permanent residency.
Always be nice, polite and cordial - remember, when you apply for residency you will have to follow up with the immigrations officers, once you obtain your residency you might still have to visit with them from time to time. And if you go for your citizenship thereafter, yep, you will be dealing with immigration again. When you renew your Belizean passport - yes it is at the immigration office.
So, you will find that the vast majority of government officials will mirror whatever attitude you display. They are expected to be cordial but firm and straight forward.