The pair are expected to be part of Uruguay's World Cup squad this summer.
Forlan told the Telegraph: "I was a Manchester United man," says Forlán. "But I told him how, after I'd scored to knock them out of the Europa League at Anfield [with Atlético Madrid], their fans applauded me. I speak to Luis a lot. He's loves playing at Liverpool.
"He likes the Premier League. And the fans love him because he's a strikers' striker. And he's better than ever now. He still chases everything, like Wayne Rooney used to before he moved deeper. And he's learned from his mistakes. We all make them. He's in shape, too. That's important."