1. Huza amakariso unyuze mu mwobo. Ihame, insinga ziri hagati yikariso nizinyura mu mwobo zigomba kugurishwa. Kubura mask yo kugurisha bizaganisha ku gusudira inenge nka amabati make mu ngingo zagurishijwe, gusudira gukonje, imiyoboro migufi, ingingo zitagurishijwe, hamwe n’imva.

2. Igishushanyo mbonera cyagurishijwe hagati yikariso nigishushanyo mbonera cyerekana ibicuruzwa bigomba guhuza nigishushanyo mbonera cyagurishijwe cyo kugabura ibice byihariye: niba idirishya ryo kugurisha rikoresheje idirishya rikoreshwa hagati yipaki, kurwanya kugurisha bizatera uwagurishije. hagati ya padi mugihe cyo kugurisha. Mugihe cyumuzunguruko mugufi, padi yashizweho kugirango igurisha yigenga irwanye hagati yipine, bityo ntihazabaho umuzunguruko mugufi hagati yamakariso mugihe cyo gusudira.

3. Ingano yububiko bwa mask igurishwa yibigize ntibikwiye. Igishushanyo mbonera cya masike yagurishijwe nini cyane "izakingira" mugenzi we, bivamo nta masike yagurishijwe, kandi intera iri hagati yibigize ni nto cyane.

4. Hariho unyuze mu mwobo munsi yibigize udafite masike yo kugurisha, kandi nta masike yo kugurisha ikoresheje umwobo munsi yibigize. Ugurisha ku mwobo nyuma yo kugurisha umuraba bishobora kugira ingaruka ku kwizerwa kwa IC gusudira, kandi birashobora no gutera uruziga rugufi rwibigize, nibindi.