Grow in the grace. Grow not just in one grace, but in all grace. Grow in that root grace: faith. I believe we should let faith increase in fullness.
Grow in love. Ask the Lord that your love will be more extended, more intense, more practicle, influencing your every thought word and deed.
Grow likewise in humility. Grow upward in your approach to God in prayer and a more intimate fellowship (there's that word again) with Jesus.
May the Holy Spirit enable you to grow in grace and knowledge of our Lord and Savior. By not doing so we are refusing to be blessed. To know Him is life eternal. If you have no desire to learn more about Christ, you know nothing of Him. If we don't want to know Him better then we simply don't love Him. The absence of Christ is hell. But the presence of Jesus is heaven.
We should not rest until we have increased our acquaintance with the Lord. Learn more of Him and of His divine nature. Learn more in His human relationship, His finished work, in His death, in His resurrection, in His present intercession, and in His second coming. We should want to know more and more of Him. This is one of the reasons I love blogging with the Ministers and other fellow Christians the most. I have learned so much in such a short time. In all practicality I know I have lived better than half my life. Still I want to know as much as I can about Him. In doing so, as I grow older I am growing in grace.
So, an increase of our love for Jesus and a more perfect concept of His love for us is one of the best ways to grow in grace.