Colossians 2:6-7 As ye have therefore received Christ Jesus the Lord, so walk ye in him: rooted and built up in him, and stablished in the faith, as ye have been taught, abounding therein with thanksgiving.
A sign of established Christian faith is thankfulness. Paul repeatedly mentions throughout his writing that we are to always be thankful. The world should know you as a person who is always grateful for what they have, even when things go wrong. We all have a Facebook friend who is constantly complaining. It’s like their whole life is miserable, and they feel the need to constantly express it. You are fed, clothed, and educated, which is more than many can say. Beyond that, you have an eternal hope in Christ that gives you an earthly purpose for life. Even fewer people on earth have that. Show the people around you and the God Who died for you the thankfulness that comes from established faith in Christ.