Revealed when Hinata was introduced, she was shown to have feelings for Naruto.[1]
It is confirmed in Hinata's childhood, she was the only person who acknowledged Naruto and admired him.[2]
During the Chunin exams, Naruto and Hinata cheered for each other.
Hinata roots for Naruto during his fight with her teammate, Kiba.[3]
Naruto cheers for Hinata in her fight with Neji.[4]