It's tough with dogs. Wispa is well trained but she gets very excited to see new people and will desperately try to lick their faces. So I'm constantly having to haul her down and away from jumping up at people who come to our place. However, give her a minute to calm down and she's perfectly behaved, will listen to every command, and will generally just lie down at our feet and sleep.
She's an extra large dog in terms of height and weighs a good 32kg, and she is very friendly; however, on walks she goes off lead and will not run up to other dogs without my say-so. Other people, though... Well, she thinks all people have treats in their pockets and she likes to go sniffing. She will always stop and come back to me if I tell her to, but she's just a very curious and friendly dog.
I've grown up with large dogs, and they've all been like Wispa. I love how amiable she is. I love how much she loves people. It has taken quite a while to get H's family to come around to the idea of a large dog as they had no prior experience with dogs, but they love her now, even our young nieces who were scared to death of her at first. We do have to keep her under strict control when they're around, though, as they don't like their faces licked and as far as Wispa is concerned they are at the perfect height for it!