To be a disciple of Jesus Christ means to be His follower. We follow Him in His dying and rising to new life. The Apostle Paul makes it clear that baptism into Christ is an initial step.
We follow Him in his servanthood. Deep study of the servanthood of Jesus Christ reveals the heart of God. There is no sentimentality, no enabling of misguided behaviors, and no self-service.
To be a disciples of Jesus Christ means to be His student. We are to study the divine pattern that He embodies through the study of holy Scripture. Many find it helpful to study the lives of effective Christian disciples.
The Gospels, Acts, and the Epistles urge us to be imitators of Jesus Christ and this requires obedience exemplified by moral behavior, service to others, and the love of God at work in us.
The Lord's Prayer is really the Disciple's Prayer and it should be part of our daily devotions.
Related reading: Praying Hebrews 5