Pamene mukuchita masewera olimbitsa thupi, kupalasa njinga kapena kuyenda, mumasowa chovala choyenera, akabudula apanjinga pamasewera ndiye chisankho chabwino kwambiri chokwera mapiri komanso kupalasa njinga. Nthawi zambiri zimakhala zosinthika, zomwe zimakulolani kuti mukhale omasuka komanso osasunthika pamene mukuchita masewera olimbitsa thupi.