Though your 3-year-old is beginning to understand the emotions he's feeling, he still has very little control over them.
I see that he is very good at understanding the emotions of others.
He had never been good at understanding emotions, his own or anybody else's.
I watched their looks, but could not understand the emotions that were written in them.
"She is one of the few people who understands the strong emotions I have."
Mother felt that through Shakespeare alone she might at last come to understand emotions.
"As you know, I have always had difficulty understanding human emotions."
His research is devoted to understanding emotions in individuals and society.
It was not until sometime later that I would come to understand my emotions.
They just don't understand our emotions, but they're completely fascinated by them.