That last equation should read:

7.35 x10^22 *60* (1/58081000000) -- makes it easier to see what a tiny value you get compared to the field influence of Earth on the same human body. The issue of liquid has nothing to do with it. The only reason we think of liquids as tidal is because they show it more obviously, being less atttached, yet having enough coherency to respond uniformly as though they had a block mass. Gases would be just as tidal but they dissipate and act like they have trilliions of centers of mass. Come to think of it, I wonder if there is an atmospheric response to the cyclical infuence of the moon?

A.