Particularly for first-time homebuyers choicing a home is difficult.  Make a decision on each home visited and rate from 1 to 10.  Often they dither, but the agent presses them for a number before they go to another house, assuring them they can revise ratings at any point.  This way, when the first house was a 6 and the second a 4, they decide  that the 2nd house if off the list of possibilities.  This often shortens the looking time from weeks to 2 or 3 outings.  The buyers are usually happy with that house as they would be if it had taken them weeks.