Dobbin often acts behind the scenes in order to avoid recognition for the good he performs. In one instance, he purchases Amelia's piano at her family's auction and sends it to her annonymously. Unfortunately for Dobbin, Amelia assumes it's from George and doesn't find out otherwise until the end of the novel. Dobbin hides his true feelings for Amelia, even after the death of George.
In another instance, Dobbin works behind the scenes to soften the Osbornes toward Amelia so that they may help Amelia's son Georgy move up in the world. He tells Georgy about his father, India, and Waterloo and mentors the young man.