There are many ways a submissive can greet her owner when He arrives home. Some are dictated by circumstance, some are not. Personally, I have a few things I do to greet Him, and it has become a sort of slave ritual for me, a way to get into that slave place within my heart.
When He comes home, I usually take His bags and put them away, then a hug and kiss. Once He is in the door and His coat is off and put away, I will set up His lap top for Him, plug in His hand held game, and get Him a soda. Once I do that, I will kneel at His feet and take off His shoes and socks, setting them aside for Him.
This is just how I greet Him, it differs for every submissive. Every submissive just needs to develop a way to greet her Owner that fits and works well with their life and their situation.