Inflield Fly how to "declare" one

[lc_huxter]

Let say we have a high pop up and we forgot to call infield fly because we were amazed of the highth of the ball. Then it drops to the ground right in front of the pitcher. Everybody advances safely.

Defense comes out and says "blue that was an infield fly" Oh ya your right coach sorry about that.

BR your out. Offense comes out and says "blue you didn't call an infield fly" ya I know coach but hey it is an automatic call and we blew it. Sorry.

Then my partner comes up to me and says hey Hux, I had my finger in the air, didn't you see it?