Abraham's minutes had been reduced this season following the arrival of £47.5million signing Timo Werner from RB Leipzig.
But Abraham has won back his place in the side, starting six of the Blues' last seven games, and stated team-mate Giroud's guidance was crucial in his improvement.
He told the Chelsea website: "Of course, I learn a lot from him. He's someone I grew up watching on TV so it's great for me to be training with him now every day.
"I like to watch him and steal some ideas to add to my own game. I look at the way he holds the ball up and try to add parts of his game to mine.
"He gives me advice all the time. We were on the plane back from Newcastle the other day and I asked him what he thought of my header that the keeper saved.
"He gave me good criticism and things I can work on to score more headers."