Discretion is critical. Reflex is right, confidence and know where you are going.
The lady will tell you room number when you confirm you are in the car park NOT the lobby.
The lobby is to noisy and hearing the right room number from a lady with an accent can be hard.

She will probably have some advise. One issue is card operated lifts, so prepare for stairs.

Remember the lady needs you to be discreet or she could be checking out earlier than planned.

Personally I prefer hotel meetings