gasket sealer or no gasket sealer?

[91convguy]

I am about to install a new water pump and a new water pump housing gasket not sure what to do here long time friend and X-mechanic tells me I'd be defeating the purpose of the gasket buy using gasket sealer,makes a little bit since to me. But the Hanes manual tells you to put a thin coat on gasket just between engine and gasket (just one side of the gasket) and sum between water pump and gasket. Someone else told me to put a thin coat on both sides both gaskets put it together and wait a day then add coolant. I myself think it would be best if it was applied on the gasket side that's going up against the housing on both gaskets an that's it.