Bringing a date around babies is a great test to see what kind of instinct they have. Bringing a date around pets is another good way. If your date doesn’t want to hold the baby or pet the animal, then you’ll need to question why. That is, if you want to have babies or pets in your future (if you don’t then it’s a perfect match!). But most people are looking for a family of some kind in their future, and finding someone with a natural instinct and comfort around babies and animals is important. So once you get to the point of having to decide whether you want to get serious with someone, take them around your friends who are already settled down and see what their vibe is in a house with 2 kids and a dog.