The midfielder formally signed for Toon yesterday from Ajax.
"I hope to bring a lot of attacking play and goals," he told nufcTV.
"At Ajax I scored quite a lot of goals as an attacking midfielder - sometimes as a striker - and I hope to do that here too.
"I want to help the team be as good as it can be."
De Jong wore the captain's armband for the last two years at the Amsterdam Arena, lifting the Eredivisie title twice in the process.
"I hope I can bring it here as well," he continued. "I had a great couple of years (as captain) at Ajax and really improved my leadership skills.
"It was good for me to be captain and to have that opportunity at Ajax. I hope that will help me here."
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