This questions is a little odd! No offense but here woud be the answers!
He will be using sight, and hans the whole time!
As he walks into the resteraunt he will most likely use his ears to listen to what the server says, he may use a little bit of smell to smell the food. He will continue to use his ears until he sits down and gets a drink ordered. He will then use his taste to drink the water, or other drink. He will then use his ears until he has completed his order. He then will use his tastebuds until he has finished his meal. He will then use his ears until he pays and walk out the restaurant.
I am not sure if this is what you wanted. If it is incorrect please comment more details and I will redo it! Have a good day! :-)