It is a language matter. As one learns the skill, their intonation goes with it, as they advance in skill and practice so does their voice that accentuates their successes. .
I had a little school bus companion friend when we were farming. Their place was a half mile across pasture land from ours. We often heard them when the air was right and knew if they were happy, angry, or just working hard, especially in the evening air as darkness approached.
She kept after me on the bus, to drop off at their place. I got the OK from mom one morning before leaving the house. They had a record player, we didn't, and they played some songs for me. We all had radio, and played soft music while milking our herds. But their records really had my interest. While i was watching it working, her and her sister secretly rigged up an enema in another room. When the record finished and was cycling back and forth in the middle, they came in to show me their home and led me straight to their trick. It caught my eye as stunningly as their record player. I froze in my tracks, seeing it dangling in the next door way. We were in the 6th grade and her sister Gertrude was in 8th, Tooty for short. Tooty pinched her sister's butt and she screamed. The air was thick with suspense and the scream caused me to holler as well. Tooty, as she did with the record player, took things in hand and rubbed the side of the bulging bag. Susie looked at me as i turned to see her face. She raised her eyebrows at me, and said, "Tootie likes to be played with and that makes her happy." We would like it if you watch, but not tell and we will let you touch us. She led me to her sister with bowed head and pretty dress made of flower sacks. Susie picked up my hand and put it on her sister's breast to appreciate her maturity. Again, my hand froze with her mammary cupped under my hand. I was speechless. Tooty turned up to see my expression as my mouth dropped open. My heart was pounding as little Susie brought up a chair and pulled me back into it. They got to their planned arangement and kept watching to see me as they moved about, getting onto a dish towel in the floor. I leaned forward as Susie raised her sister's skirt and petted a bit of thin fir at Tooty's Y. Turning away from me, Tooty brought her knee to her chest and gave the dripping nozzle into Susie's hand. I began so smell bacon grease as Susie started playing with her sister's hiney hole. Tooty arched back to see me seeing her and i gave her a big smile. While Tooty held my attention with her eyes, little Susie was starting in with the nozzle. Tooty's eyes closed and she looked away again. I Turned to see Susie and she was intent on working that thing into her big sister, just right. Susie pointed to the hose clamp half way up out of her reach and put a finger to her lips, giving me a nod to open it softly. Again suspense seemed heavy as we played this out together. This was mischief !! As i eased the clamp loose, air up in the hose made a gushing and gurgling sound, giving my secret away. Tooty moaned like a calf calling for its mother and i knelt to cup the breast put under my had earlier. Again with her hiney filling and me by her side Tooty, even louder than before, gave out her little calf call. "What's the matter, little calfy" i cooed into her ear. "Mmmm, pet my fur", she pleaded. So i softly stroked her head and pretended to sympathize. "Sissie,," she sighed, "Stop." And Susie quickly let loose of the nozzle she had up her sister and clamped off the enema. Tooty rolled onto her back, raised her dress from in front and said, "Show him Sissie, teach him." Susie brought me down close and put my hand on her sister's loaded tummy. As i petted on her pooching tummy, Tooty raised her knees and dropped them apart. "Look!" demanded little Susie and she pointed to her sister's new growth and nodded for me to check it out. Leaving her tummy full, i eased my anxious hand down to appreciate her sister's pride. Tooty bellered her begging calf's call again and again. As i politely petted her new pelt, Susie picked up my chin and gave me the no, no with a slight twitching of her forehead. I returned a frown, and Susie motioned with her left hand and dipped it in-between Tootie's private area. Again i sensed the smell of bacon grease. Her right hand parting the way. She turned her left ear down, indicating she wanted me to join her there. As i cautiously eased downward, Susie jumped onto my hand like a jumping spider would and brought my fingers to bear on her sister swollen need. She somewhat played with my fingers and got them to stroke her big sister, just right, nodding in approval and bumping me when i was off mark. Soon i thought i heard a kitty meow and looked up. Again Susie bumped me and turned her left ear down. I searched and found an unusual area within her sister's folds. As i dwelt there, i heard their kitty again. Susie stared at me like, stupid, and dipped her forehead. I was struggling between desire to please and total confusion. So as i found it again, Susie nodded when Tooty meowed for me ever so sweetly, again and again. As Tooty twitched an twisted i would lose my place, causing her to beller like a hungry calf. Finding it again for her, she would purr and meow. Soon, she got very quiet and clamped my hand down with her legs. She seemed to be in a spell i could not relate to and just hoped her spasm would pass. As its grip eased, I noticed her breathing was deep. She tugged my hand out from her business and put it to rest on her precious tittie. No sooner had i started exploring under her neck line, she scrambled up, dashed off and disappeared out the back door.
As Susie and i stood looking at each other, i told her i had chores to do, but she lifted her dress and showed me by opening wide. As i stared she pulled my head into her. There i licked her like a mamma cat did for her kittens. She grabbed my hair with both hands and began stomping the floor with her right foot. I felt her left knee pop forward and sounding like a honey bee, she clamped onto my head till i felt pressure between my eyes. Turning loose of me, she flopped back into the chair, straightening her dress and breathing hard.
She had made almost no sound except with her foot as she was pounding the floor and pulling my hair just before clamping onto my poor head...
Moral of the story: Watch out for the quiet ones!