After you see the virtues, you have the basis for a true love relationship. In return, to be loved by others, you must become virtuous in their eyes. Do for them what you'd want them to do for you. A general rule is to be happy and upbeat. It's a drain to be around people who mope and complain about every little thing.
All parents love their children.
To communicate love, you have to show you understand, appreciate and take pleasure in the other person's essence. Stop and analyze the good they do, and stop focusing on their flaws. Push yourself to show people that you appreciate them. I'm glad you came. Judaism forbids flattery because it is misleading and manipulative.