In regards to Cecily's comment about some SA's smiling only for the money, that may be true, but when they run out of a backroom upon seeing you shopping and come over to chat about everything but work, you know. Or when they continue beyond the sale by getting accessories which they know you won't buy. Or when you've had a makeover and the artist has to have you try her coat on and style your hair. I have had many good experiences which I know are genuine. Sadly, I miss some of those people as their businesses closed (Dress Barn, sadly).
On the flip side, I stopped en drab at one clothing shop where the SA informed me that I was looking at the juniors' section. Her manner was frosty not because I was drab, but workplace drab. I found out later that my cosmetologist SA had the same experience there when she was not dressed in the proper way to shop there.

Sorry, for rambling on.