Only communicate inside a walled garden. Forgo public anything. For example, do all your communication in Facebook Messenger. It's not because Facebook Messe

Only communicate inside a walled garden. Forgo public anything. For example, do all your communication in Facebook Messenger. It's not because Facebook Messenger is the best messenger ever, but instead, it is because there are so many hoops for the person to jump through ( for example getting accepted into your social network and meeting all the security requirements that are managed by Facebook for you - SSL, 2FA, etc ) that you end up with 100% signal and no noise.