Suarez rattled the United defence in an amazing attacking display.
"He does something different every time you see him," said Dalglish, who will attempt to mastermind Liverpool's fourth consecutive win at Anfield over their most fierce rivals. "I think the problem people have with Luis is that they don't know what is coming next. But he does - and that's helpful.
"We just hope he continues to surprise us - pleasantly, of course."
Reflecting on the moment he slalomed in from the left, danced along the byline and poked the ball into Dirk Kuyt's path that afternoon, Dalglish said: "I don't know how he did it.
"It's not the first time he's done that. Maybe it was in terms of how many he went past, but each of the individual things he used to get past people he had done before. He just collated them in the one run past three or four.
"But he has got other things to his bow apart from that. He did fantastically well for that first goal and obviously the game has got happy memories for Dirk Kuyt as well. Dirk scored a hat-trick but if you added up the distance of all his goals I don't think you'd get outside the six yard box.
"It was two yards, two yards and two yards. But they were a vital two yards. For me, Luis has made a fantastic contribution."