여기요 [ yeogiyo ]
여기 means ‘here’ and 요 is an end particle to be polite. However, 여기요 is more used in almost the same way as ‘excuse me’, to get attention.
여기요! < in a restaurant > (Excuse me, we are ready to order. / Can you come here, please!)
여기요. < on the street > (Excuse me. / I would like to ask you something.)
저기요 (저기 [ jeogi ] means ‘there’) is used like 여기요, but 여기요 is more common.