This is the 13531st most frequent Russian word.
настраивать
"To adjust, set, tune, or prepare."
In this sentence, 'настраиваю' refers to the action of adjusting something (here, a guitar) to work properly.
Я настраиваю гитару перед концертом.
I am tuning the guitar before the concert.
Here, 'настраиваю' is used in the sense of preparing others mentally or emotionally for a particular state.
Перед обсуждением я настраиваю команду на продуктивный лад.
Before the discussion, I set the team for a productive mood.
In this example, 'настраиваю' means to configure or optimize a system or process.