The mouth vs the heart is a daily check. its easy to get into what everyone else is doing and pay no attention to self. Questions-
how much time do you spend seeking God to know Him, to love Him, to walk with Him in a pleasing way?
When you're doing these thing its really hard to pay attention to what others are doing. Jesus prefered love over sacrifice. Yes, walk with Him , serve Him but let love be your highest goal; love for Him and love for people. This will cause you to be pleasing in your words and in your heart.