How do you feel about me catching the biggest fish I've ever seen?
Whoa! How big was it exactly?
I don't think it was the biggest one but it was indeed huge
When relaying size details it might be helpful to compare it to a well know item or object.  It is good to be interested in things you don't see everyday.
Maybe yours, I bet my cats fish is bigger.
I'm sure it was! It's great to see something impressive whenever you're interested in that topic.