1. Cov khoom tsis yog tsim los yog tsis tau tso cai los ntawm tus neeg tsim khoom siv thawj. Kev sib xws yog raws li cov lus qhia txog kev siv uas pej xeem muaj thiab yuav txawv nyob ntawm tus qauv thiab kev teeb tsa ntawm cov khoom siv. Cov neeg siv raug qhia kom xyuas seb puas sib xws. Yog xav tau daim ntawv teev cov khoom siv sib xws, thov hu rau peb pab neeg muab kev pabcuam rau cov neeg siv khoom.
2. Lub vev xaib yuav siv cov tuam txhab thiab cov hom lag luam sab nraud uas tsis koom nrog peb li cas los xij. Cov duab khoom tsuas yog siv rau kev piav qhia xwb thiab tej zaum yuav txawv ntawm cov khoom tiag tiag (piv txwv li, qhov sib txawv ntawm qhov pom ntawm lub connector lossis xim). Yog tias muaj qhov tsis sib xws, cov khoom tiag tiag yuav siv tau.