What does it mean for a man to see some women cough on purpose?

What does it mean for boys to laugh and cough when they see girls?

1, which means he admires you. He smiled at you because he confessed at the beginning and was embarrassed to start a conversation, while coughing was to attract your attention to his performance.

2. Explain that he should have such love for you, but it is not obvious. Maybe he didn't feel it himself, but it will be clear after a long time.

In a word, that boy has a crush on girls.