Matumba oyimilira gofu ndi opepuka, matumba ang'onoang'ono opangira osewera gofu omwe amasangalala ndikuyendayenda pamasewerawa. Amakhala ndi maimidwe obwezereka osavuta kupeza makalabu mukamasewera. Pokhala ndi lamba womasuka pamapewa ndi matumba angapo a zowonjezera, matumbawa ndi abwino kwa magawo oyeserera kapena ozungulira wamba.