Uko wohindura amarangi y'icapa ry'izuba

1.   Dushingiye ku buryo bubereye uburyo bwo guhindura inzira y’injiza igihe uhindura wino .

2.   Hitamwo inzira y’irangi cane cane n’umuti wo gusukura w’umwihariko imbere y’uko ukoresha wino

3.   Ntutere ubuhumane bwa kabiri igihe usutse wino .