What does it mean to say that boys laugh?

Boys' uncle smiles also come from girls' aunt smiles, among which boys' uncle smiles spread more widely, with similar meanings, and the difference is not very big. Uncle smile can be seen everywhere in life. For example, when you are in class, you suddenly find a male teacher watching his students do well and unconsciously leaking a satisfied smile. This is called Uncle Smile, but with the spread of the Internet, Uncle Smile is also known. Also slowly lost its original meaning. The first person my uncle laughed at was Kazuo Hirai, a well-known Japanese corporate figure. As such a figure, he became the founder of the funny expression pack, which can be said to be very interesting.