Hello doctor if a hiv person after urination with out washing his hands suppose he offer some thing to eat we will get hiv?

No: If this were possible, HIV would be far more widespread. During the years that it was untreatable, the casual household contacts of HIV patients -- many of these patients being children -- simply didn't become infected. The risk appeared to be zero without sex or needle-sharing. This is 2014 and you owe it to yourself to be properly informed and not to let these fears trouble you.