How do you teach a toddler his name?

from the age of 5 months I used to play with my little girl (Dua)esp during feed times; I would say 'Where's Dua', 'Where's Dua' and pretend to look everywhere for about half a minute; and then finally look at her and say 'there's Dua' - that I think is what taught her her name. she is now 8+ months and I still do it everyday. Now when she is playing I say 'Dua' and either she answers with a sound (if she is sitting where I can't see her) or turns and looks at me.