What can we learn through touch?

Initially to test what we can learn through touch i sat in the center of town blindfolded and tried to guess things about people when through just touching their hand. I did remove the blinfold quickly as it made it much easier to draw people in to participate. Because of this the second time around i stayed on the campus and wore the blindfold the entire time. Instead of guessing anything i also started to specifically guess how people felt, this was much more fruitfull and I had a decent success rate.