What you see is what you get. Is more natural ^.^v

What you see is what you get. This is the standard phrase. But if someone wants to be a little humourous he could change it to: What you see is what you will get. (showing him his fist or something)

Although Remy is right, but for example; What you see is what you will get is like in the present time/tense or if a family went to the zoo for the day out then...What you see is what you will get i.e. if you see a gorilla then that's what is on offer...............I know this is all technical jargin but...What you see is what you will get.....ha ha.....adios : )