I usually go for business casual, dark colors so i breeze by without being super noticeable. I wear flats and put on my heels in the elevator or outside the room before knocking on the door....unless I'm meeting him beforehand. He needs to see me in heels basically. The flats are for my comfort

In fact, nothing would make me happier were these devices of torture to disappear.

But, in any case, conservative attire is best to allay suspicions makes the most sense, under which, of course, can be decidedly unconservative attire, or none at all.

If she has to come through a public area to get to me, I understand her need to be discreet.  That overrides my need for a thrill when I open the door.  

I have been going with a long coat and flats. I put on my heels in the elevator and take off my coat at the door.  

Typically when the appointment is booked I ask the client-

"What would you like me to wear? Typically I wear heels, a pencil skirt and a nice shirt. Since I'm all yours that evening does that work for you?"

I went from cute pink gogo shoes to black knee-high flat boots in a matter of days. I feel comfortable blending in but I still like to look sexy so I tend to go for a business casual look. Pencil skirts with nicely fitted shirts that show off my figure is my goto outcall look. Or a nice fitting knee length dress works as well for me. My heels aren't extremely high, so going from the elevator to the room is easy for me I've only been doing this for a year so far so good when it comes to any issues with my presence.  

I also have my Lingerie on underneath my clothing as well.

I like to be comfortable and low key, noone is worth being put on a radar. Trust me that is what happens when you walk through a casino alone wearing some slutty outfit. I rather not have my face posted in the back for all casino employees to see (yes they take pics of known escorts and post them by the security office)  

Because of my hair and look anyways I get looks lol might as well try and not be anymore obvious haha..and like the ladies above said. Bring a goodie bag and make it a tease for them to enjoy.