"Messi's quite quiet, he's quite reserved, he's a little bit shy," Abdo said. "Whereas Ronaldo comes across as very confident, he's very comfortable in front of the cameras and he'll give you a little bit more back."
Abdo noted that 31-year-old Ronaldo comes across differently off camera than he does on it.
"It was interesting because we see him so much on TV," she said. "He's such a big brand, he's so well known in terms of his public persona."
And she revealed that their mutual fluency with the Portuguese language meant that it was Ronaldo, rather than Neymar's Barcelona team-mate, who guided him through this year's rehearsal.
"He came out with Neymar, and although Messi and Neymar are team-mates, it was Ronaldo who took him around and showed him where he had to go and made sure everything was translated for him," she said.
"He was very kind and very caring towards Neymar, the way he looked out for him and made sure he knew what he was doing. I think that's a side maybe you don't expect."
The trio, who shared the podium that night, will be together again on April 2 for this season's second Clasico at Barcelona's Camp Nou.