A characteristic trait among children is sincerity. They’ll say what they don’t like without hesitation, even if the truth is inconvenient for that person. They openly say what they think and feel. These traits could sometimes prove useful among adults. Then their relationships with other people would be much simpler.
If you want to tell someone that you love them, be like a child and just do it! Stop wondering what that person will think. Just tell them what you feel! If that someone will reject you, you’ll finally know where you stand and stop living an illusion. It’s that simple!