In my salon, we always offer tea/coffe/blackcurrant/water to clients and also to whoever they bring with them, everyone is made to feel welcome..
We play general music, or radio... nothing too loud or boisterous
there is mostly a tin of choccies on the reception desk or biscuits are offered.usually pre wrapped (kit kat etc)
We will go out of our way for clients, one often brings cakes in for us, so we try sometimes to surprise her with cakes also...
It all helps to build a close relationship with your clients!!!
Conversation always follows whatever the client wishes to talk about, but if they seem to have trouble with conversation and the atmosphere is a bit flat, then I will start a conversation about a general topic of interest (whatever is on the news!!)
Just go with the flow, start with just tea/coffee/water and soft music... then maybe use a questionnaire to ask your clients what they want... just make sure that you only offer what you can afford to.
Sue x