Claude did tell Jesper what his conversation was, so when they arrive, he will leave immediately with them without argument. He will chat amiably with them as they walk since he's the friendly sort, small talk if they're willing to do that. He may flirt a little bit with the interviewer, it's his impulse.

He will tell her that he was exhausted by helping with the large trees to cross the ravine and pushed it too far. He tried to do it all himself, and oversold his strength to the others to show off. He'll joke about showing off to the ladies meaning Gideon and Ciri.

While Jesper is a very good liar, a perceptive person will be able to tell that he is trying too hard to be clever and talking a little too much or too fast. He's nervous.

Note if it matters: If any of the guards looked closely at the bridge over the ravine, they might find it appeared strange. The main part did look like trees shoved over, but where it was fixed to the sides of the ravine was a blending of the tree wood and the ground earth, he used his transmutation to connect them. This was to make the path safer and solid.