The definition of inference is a guess that u make on a specific topic or an observation.
There is a dude walking on the street with chains on and is sagging his pants and has gold teeth. An inference you make from this is that the person is a gangster.
I can infer that the little boy is wondering what inference means based on the question mark and how confused he looks.
I can infer about this baby is that the baby loves chocolate cake based on how happy he looks with chocolate all over his face and upper body.
I can infer that in this image the dude in the red jersey is amazing at football based on his one handed catch.