The former Manchester United and Republic of Ireland captain told ITV this week: "If I was a team-mate of his I would kick him up and down the training pitch."
But Hiddink admitted Hazard, who has struggled for form this season after his influential role in the Premier League and Capital Cup One successes last season, needs to do more.
"I remember once he had a sprint on our right-hand side (against PSG)," Hiddink said.
"That's the old Hazard and we hope to see that more frequently.
"He's showing once, but he can show more. He's aware of that. Now it's up to him to step up."
Hazard on Monday, the eve of the Champions League tie, spoke of it being difficult to turn down a move to PSG, although he reiterated he was under contract until 2020.
Hiddink, who has had "small conversations" with Hazard, has no reason to suspect the Belgian in agitating for a move.
"He's very keen to be here, he's extended his contract, his family is happy here," Hiddink added.