"若い男性の恋の最初の症状は内気です女性の最初の症状は大胆さです"

Simplified Meaning:

When a young guy starts to fall in love, he often becomes shy and nervous. He might find it hard to talk or even look at the person he likes because he feels self-conscious and worried about saying the wrong thing. Think about a boy in school who suddenly can't stop thinking about a girl in his class; he might turn red when she talks to him or tries to avoid eye contact. On the other hand, when a young woman starts to have romantic feelings, she often acts more confidently and boldly. She might try to get the attention of the person she likes by starting conversations or showing off her skills more openly. For instance, a girl who likes a boy in her class might start talking to him more often and be more outgoing to make herself noticed. For someone experiencing this, it helps to understand that these reactions are normal and common. It's okay to feel shy or to act more confident when you're interested in someone; recognizing these feelings can make it easier to handle them. You can take small steps to be more comfortable, like practicing what you want to say or finding shared interests to talk about. Most importantly, knowing that others feel the same way can ease your worries and help you act more naturally.