If you want to send a message to a boy you have a crush on, you can refer to the following suggestions: Choose the right time: If you know that he might be busy recently, you can choose to send a message when he is not around. If he was not sure when he would be free, he could send a short message a few days in advance. 2. Express your true feelings: Tell him how you feel about him in the message, but don't over-express or pressure him. You can simply express your interest and appreciation to let him understand your feelings. Use interesting topics to attract his attention. For example, share some interesting things you saw or ask him if he has done anything interesting recently. 4. Don't be too frequent: If he doesn't reply to your messages, don't over-ask or pester him. Give him some time and space. Maybe he's busy or has other things to deal with. 5. Respect his decision: No matter what his reply is, respect his decision. If he isn't interested in you or doesn't respond to your feelings, accept his decision and don't pursue him too much.