How hard can it be to signal your not interested? Either pull back from her touch as soon as she touches you. If that does not work, simply say - quiet so the other coworkers cant hear it too well - "sorry, I feel a bit uncomfortable with your hand on my shoulder".

Just ignore her whenever she flirts, that should make it stop quickly.

How hard can it be to signal you're not interested? Pull back from her touch as soon as she touches you. If that does not work, simply say - quietly so the other coworkers can't hear it too well - "sorry, I feel a bit uncomfortable with your hand on my shoulder".

Just ignore her whenever she flirts; that should make it stop quickly.