Popular among tourists, it is a form of superstition that is believed to bring good luck, ensure a return to the city, improve love life or make a wish come true.
[1] In Springfield, Illinois, at Lincoln's Tomb, rubbing the nose of Honest Abe's large bust is good luck.
[2] Some of those superstitions also involve touching breasts or genitalia of the person depicted on the statue – this is usually supposed to bring luck in love or improve fertility.
Because of that some well-known statues had to be replaced with a replica[2] and some places discourage or ban tourists from doing it.
[5] Similarly rubbing the belly of any statue depicting Budai is said to bring good luck.