We can be an example by speaking God's word, by keeping our conversations pure and clean, by giving charity to others, sharing a good spirit, building our faith, and showing forth the purity of our soul and of our purpose.
Faith like exercise must be worked at. We must read God's word daily. Give a good spirit to others daily, keep our hearts and minds pure daily, and endure the race daily.
I am very proud of my young daughter who saw the joy that the exercise of her body would bring, but I am even greater to realize that the she also understands the greater eternal joy that the exercise of her faith will bring.