Let them know that you are not interested in any further communication with them, and remove them from your phone, email, social media, and anywhere else you may have their contact information.
Try to pose more interesting, open-ended questions which require longer, more thoughtful answers. Starting conversations with strangers is an already awkward experience and making it more awkward for her by putting pressure on her with an open-ended question may be counter-productive. Escort Armadale
For many men, this is much easier than trying to directly flirt or hit on someone. If she engages with you reciprocally, ask to meet sometime for coffee or lunch.
Healthy relationships require space. Healthy Boundaries Creating boundaries is a good way to keep your relationship healthy and secure.