And when Jesus came to the place, he looked up, and saw him, and said unto him, Zacchaeus, make haste, and come down; for to day I must abide at thy house. (Luke 19:5 KJV)
I love his spirit. He doesn't give up because the crowd is too thick and he is too small. He devises a plan to ensure that he gets to see him. The little man climbs up into a Sycamore tree and he draws Jesus' attention.