QUESTION:  
About 20% of all people say this is one of the first things they will do when going to someone’s house for the first time; what is it?

 
Nearly every home has at least one...some have more than one. 
It has everything to do with their furniture 

ANSWER:
About 20% of all people say one of the first things they will do when going to someone's house for the first time is sit on their couch.  

Congratulations to Dustin Davis of New Castle, IN for being the first to answer the Impossible Question!