Pavel Pogrebnyak's fifth-minute goal was enough for the Royals to record their second Barclays Premier League win of the season with a 1-0 victory at the expense of West Ham and McDermott's side have now conceded just one goal in their last three outings.
"We tried to play a style of football here which entertains our fans," he said. "But 4-3s, 3-3s, 2-2s, 7-5s; if the results are going against you that is not what the fans want to see and they start shouting at me. So today they got a result, our fans got a result and that is what they want to see and we have something to build on."
He added: "A 0-0 with Swansea, the performance at Man City and the performance again today and another three points, that is four points from three games and gives us something to build on."
The win takes Reading five points behind 17th-placed Aston Villa and McDermott believes a change of mindset has made his side more miserly of late.
When asked what had changed over the past few games, McDermott said: "A tactical switch, a mindset switch, we have to do what we have to do to pick up results and I have been fortunate in the last three years that I have got results - we are in a results business whatever league we are playing in and we need to keep that going.
"Last year was a miracle to win the Championship, I don't know how many points we are behind but all I know is that we have got to try and win the next game."
West Ham manager Sam Allardyce pinpointed James Collins' error on Pogrebnyak's strike, as well as a glaring four-yard miss from substitute Ricardo Vaz Te, as the reasons why the Hammers left Berkshire empty-handed.
"James Collins makes a basic error, they take advantage of it then Vaz Te misses the chance," he said. "He had the easiest chance to score a goal you'll ever see in a Premier League football match and misses it - hence no points. You make those types of mistakes, you can't expect to get anything out of a game at this level.
"Once they got the goal they wouldn't want to come out and play. They wanted to protect the goal we'd gifted them. The loss of the goal disrupted our flow."
Source: PA
Source: PA