The kinds of minerals in clay affect how soft or hard it is to work with.

VOA: special.2009.09.09

At the same time he heard, or imagined he heard,a light, soft step and then another.

VOA: special.2009.10.31

An "easy touch" or a "soft touch" is someone who is kind and helpful.

VOA: special.2009.06.07

"What I think some of these terrorist group may have underestimated is that we in the west or in Russia,in this case, are perhaps not quite as soft as they might have first believed."

VOA: standard.2010.03.30