Another approach is more conservative. You can still run into them while out, but do not be so aggressive with them. This method can take longer to work and you may find that you become friends with your ex in the long term. If you talk to them, you can let them know that you still think about them and feel there is still a connection. You don't need to go out of your way to talk to them, let it happen naturally. Be honest with your feelings without going overboard with it. Your hope is that your ex will start to have a change of heart and start to contact you.