you shouldn't be seeing her in the 1st place....IMHO.
Why the paranoia??

Some providers are gonna be cool with this, and others are not.

Remember that discretion is the name of the game, so I would lean towards this not being her preference, simply because why would she want to do this?  She has all the downside of walking downstairs and meeting someone she obviously doesn't know and trying to play it off coyly, while you either go back up with her, or wait a little bit, and then go back up.

Either way, it's a lotta downside for her, and basically no upside.

Nobody here can possibly know what she’s comfortable with.

But, common sense would seem to dictate that walking around a hotel lobby just for the purposes of you watching her walking around (or you being seen walking around with her?), might be a bit indiscreet; regardless of whether you both walked up to the room together or separately, afterwards.

the hotel bar, coffee shop or one nearby...  but expectthe entire time to be "on the clock".  Hell, you can even meet her for dinner!   Dinner guests arrive separately all the time, arrive & ask for the other party...  who should have allerted the hostesss that all your group had not arrived yet.    But this little game we play is all about being discreet & everything you do must be so or you put yourself & your date at risk.  
If you have done proper research, it's unnecessary to need in this fashon unless this is the type of engagement you have planned.  More often, client & provider will meet at the room for appetizers & a quicky...  go down to dinner or order in...  then a second round.

I see no advantage for her in doing that, just to satisfy a fantasy of yours.  That means she has to be in fairly conservative dress, and then change once she is back in the room.  I would also suspect that this time would be on the clock, not free time for you.  Unless it is a very large and busy hotel, I don't think it's a good idea for her to do that.  In a place like NYC, maybe, but in most cities there are not a tremendous number of very large and busy hotels.  She does not want to draw attention to herself and you are basically asking her to do just that.

Touring ladies in Tampa, where I am, tend to stay in places that do not have a tremendous amount of traffic in the lobby.  So, parading around a relatively small lobby is not a very good idea.  If I was a provider, I would not do it.  Remember, this ILLEGAL hobby of ours is based on DISCRETION, not going out of one's way to display oneself to the world.  In a small lobby with little traffic, it would be very difficult to be inconspicuous.  

Swim

awww!

and you can always ask her to take a stroll down lover's lane hand in hand while the birds are chirping..

Just book a dinner date!

For the last 10 or so years I have been doing this (prior to being Sarah), I have been doing dinner dates and extended engagements. Providers that specialize in those are very comfortable in public. See if she offers dinner dates. There is something delicious about eating across from a man you're about to devour in other ways.

And then being able to sleep with her later is just so hot for me.  Makes it so much more satisfying.

One thing is for sure - do not try to get her to meet in public just to satisfy this fetish.  For some girls, that throws up red flags.  If that is your particular fetish, just try being open with her and if she is not comfortable with it, you can both go on without feeling nervous!  Also I agree with other people's suggestions to just book a dinner date or a social outing.  Lastly, I would also expect any time outside of private quarters to be considered as part of the "arrangement".

Cheers!