Then you should make your PC available to everyone. This can be achieved in various ways, but you essentially need to make your ArcGIS Server public and this involves making changes in firewall of your organization and network settings often including DNS.
You could probably talk with someone if your company already has a dedicated server - in this case you could publish your services there (and if no ArcGIS Server was installed there - install it there first). I seriously doubt your security policy will allow make your personal machine available to public via the Internet, so you should look for other options.