geocoding - How to reverse geocode with ArcMap?

What steps to I have to take in ArcMap (ArcEditor) to input a lat / long and return nearest address?

I found the Reverse Geocode tool but I can't figure out what to put in the "Input Features" and "Output Feature Class" fields or where to input my lat / long.

Answer

Reverse Geocode Tool Documentation.

Your data needs to be in a format that ArcGIS will recognize as a layer (shapefile, geodatabase feature class, etc.). If you just have XY's in a table, consider adding your table to ArcMap then using the add XY data tool to create a layer you can use in the reverse geocode tool.