Paper packaging standard: The side you print on faces the bottom of the package. So flip your paper package upside down, and when you remove the sheets, the print surface is up. Keep all the packages on your shelf upside down.
(This even applies to cheap photocopy paper. Most people will rip open the packages "upright" and load that way. Result is lots of paper jams. Take the pile out, flip it over, jams go away.)
If the Velvet paper is already out of the package, and you are not sure, then just slip another sheet part way out (with the package upside down) then overlay the sheet in hand and compare. You can see the difference when they are over top each other. (Or, if you don't see the difference, then you are looking at the side to print on.)