The Egyptian appeared glum after each strike of his hat trick in victory at Bournemouth.
And Liverpool manager Klopp says: "I didn't really see it to be honest.
"I'm not sure - if he didn't celebrate I cannot say anything about it because I didn't see it."
However, the German added: "I was not for one second worried about Salah performing.
"We just have to develop always.
"For him to prove again another 41 goal season - everybody would struggle.
"If you score 10 goals in the first five goals of course everybody will say it's going to happen again but if you get 39 goals then people will say 'but it wasn't 41'.
"We all have to learn to deal with that and he does as well, that's how it is."