Dogs sometimes may not contact their owners because they may not have been trained or learned how to contact their owners. Dogs may also not contact their owners because they cannot understand human language or for other reasons. If you want your dog to learn to contact its owner, you can help them learn this skill through training.
This can be done by giving the dog special signals or commands. For example, you can let the dog wag its tail when it sees you. Or call out. You can also give your dog a reward, such as food or a hug, to encourage them to contact their owner. It should be noted that dogs may also not notice their owners because they are playing or for other reasons, so if your dog will not contact their owners, you may consider providing them with more attention and attention first, and then Train again.