The Nerazzurri face Barcelona in the Champions League semi-final first leg.
Eto’o told Inter Channel: “We must get ready in a relaxed manner, testing out and predicting it in our minds, because you play games like this with your head more than anything else.
“Would I celebrate if scoring against Barcelona? Of course I would at San Siro, but at the Nou Camp I wouldn’t celebrate in front of my old fans.
“Barcelona are the strongest side in the world right now, but every match is different and we want to write history.”