Our first one was just a bit louder than normal. The one we have now, though, will just sit there and yowl. Not asking for anything -- just sitting on the couch and meowing full blast while looking calmly at us. 

It's our ragdoll, though, who's affectionate towards our dog (and was to our previous one). 

I had one as a young child, and I have one now. This guy doesn't hold true to the stereotype. He's talking more as he ages, but no more than the other cats I have owned. You are right that they are very sweet. Ours is even affectionate to one of our dogs. 

siggy47

Dogs_And_Cats

Cat Breed Of The Day - Siamese

I've had two Siamese over the years (including one now), and man are they chatterboxes. But also such sweet cats.