Kev tiv thaiv muaj nuj nqi: thawj ua haujlwm ntawm kev ntim yog txhawm rau tiv thaiv cov khoom lag luam, tshuaj lom neeg thiab kev puas tsuaj thaum lub sijhawm mus thiab chaw khaws khoom. Lub txee lub neej ntawm cov khoom lag luam tuaj yeem txuas tau yooj yim los ntawm kev siv cov ntaub ntawv ntim khoom tsim nyog thiab thev naus laus zis.
Cov tshuab khaws khoom siv tshiab: Hloov kho cov khoom noj khoom haus khoom noj khoom haus tshiab, thiab yog li nthuav tawm kev ua pa ntawm cov zaub mov.
Kev ntim cov tawv nqaij: Cov thev naus laus zis no siv cov tshuab nqus tsev lossis cua sib txawv los ua cov yeeb yaj kiab kom haum rau cov khoom lag luam kom nruj. Qhov tseem ceeb yog xaiv cov khoom ntim ntim nrog kev hloov pauv tau zoo, muaj zog, lub zog thiab kua muag ntawm lub ntim.
