You may want to consider what to write in the first message. Have your content personalized, personalized to pique the other’s interest! Show that you are really paying attention to him now and it is important for you to get to know him!
Express your interest!
Ask a few questions first so you get to know the other better and are more likely to get an answer. However, don’t make the mistake of asking too many questions at once - it’s better to read the other’s data sheet carefully first to get to know the broad outlines. Find out what your hobbies, desires, values are, look at your photos and try to get a comprehensive impression of the other person’s personality!
This will make it easier for you to find a topic for your first message. For example, if someone on the data sheet reports that they enjoy a hobby, ask how long they have been doing it. It’s best to ask about common hobbies so you can easily go into details.
Arouse the other's curiosity!
By taking an interest in someone, you also become interesting. You could start the message exchange with, for example, a quote from the other’s favorite movie, which is sure to pique your curiosity. There are significantly more replies to such messages than to template lines, which some send to multiple dating sites.
On the other hand, the other party would also love to get to know you to see if it’s worth answering at all. That's why write a few lines about yourself! For example, you can tell what kind of hobby you pursue, what kind of music you listen to, what kind of books you enjoy reading. But don’t overdo it, don’t share too much detail about yourself in the first post - so you stay interesting!