Cookie was a friendly puppy, but he was a bit reserved. He was by no means a big yellow floppy dog that just went nuts every time he saw a person. But, as soon as he had all his shots, I took him everywhere with me. In the car, through drive thrus, to Petsmart, to Lowe's, to Petco, to Home Depot, to crowded parks, to puppy socials, shopping in stores downtown, to restaurants that allow dogs outside, to dog friendly bookstores, I mean I super exposed him. Of course these places were on different days, I gave him plenty of rest and time to relax.
With most women, he would ease right on up to them for petting. Sometimes with men he would hide behind me at first. But he always adored children. I gave strangers that were interested in him some of my treats and let them feed them to him, allowed them to pet him on his sides, stuff like that--he quickly became a people lover, and last weekend he got his therapy dog certification. He's only 1 year and two months old.
Some people think of dogs that don't go wild and shake their whole bodies and all that stuff with their tongues lolling out as scared. But I tend to think of Cookie as calm. And that has really served him well. He loves people, but he just has a lot of self control and is a calm and peaceful little guy, he isn't aggressive with his desires to see people or get pets, doesn't drag me around on the leash, if he wants to see someone he is patient and if they want to see him then he gets his petting and if not, I don't have to pull him away. Shelties can definitely be more shy than other dogs but they can also be big time people lovers as long as they're socialized.