It’s hard to find anyone in this day who fully demonstrates the nature of Jesus Christ. It is possible, however, to build a composite photograph of Him, as it were, from your perceptions of the character traits of multiple people. That is, you may feel that George has the patience of Jesus, that Ralph has His kindness. You may see His courage in Ellen, or His truthfulness in Max. Piece enough of these together and you have a model of Jesus you can imitate.
If you have enough such heroes, you can better see your Hero. And therefore better imitate Him, following His example as you live your life today. And every day.