I walk around and figure out the best area to take the pic from, AFTER visiting them if that is part of the job. Preferably out of sight of the attendant, better if other people are there shopping. If you are with someone, they could lure the attendant to show them something on the opposite side of the side you are targeting. They are used to people taking pics, lots of people do it.
My posts are solely based on my opinions and for my entertainment, contact a professional if you need real advice.
When you get in debt you become a slave. - Andrew Jackson