They should be on the home row. Those are the keys A, S, D, F with your left hand and the keys J, K, L, and the ; key for your right hand.
The position your fingers are in is called the "Home Position"
You should not look at the keys while you are typing.
If you are touch-typing, your eyes should be on the 3rd to 5th word beyond what you are currently typing.
The home keys on the keyboard make typing more efficient because the other fingers then know where to be while typing. The home keys are "F" and "J" on the letter keyboard and "5" on the number keypad.
Touch typing refers to being able to type without looking at the keyboard. Touch typing also includes the use of all of one's fingers on the keyboard, as opposed to hen pecking which is typically typing with the two index figures while looking at the keyboard.
your feet should be flat on the ground to create good posture
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to place your hands properly on the keyboard, you have to put your left fingers on the ASDF keys, while putting your right fingers on the JKL: keys.
The arm throbbing from typing for long is a reaction of the muscles and nerves which might be strained. This will ideally resolve itself in a short while.
Your textbook should be placed nearby so you can easily refer to it while typing. Position it somewhere you can glance at quickly without straining your neck or eyes, such as on a stand next to your computer screen or directly in front of you. This setup will help you maintain productivity and reduce the chances of discomfort.
She should moan and she should pull you closer and run her fingers through your hair
In my younger days,we had row houses.They were all in a row and all looked the same. as in mill hill houses.The mills would build houses and rent them to the mill workers.There is an old saying "I owe my soul to the company store" this also came from the mill hill villages where the mills owned the houses,stores,everything!! ADDED: As a Transatlantic difference, if these what I think they are - all joined into a long, single building - in the UK they are called "terraced" houses. Although an 18C concept they did become particularly associated with 19C industrial (not just mill) towns, but a lot of modern housing developments now are of terraced form. The "company store" ethos was used in Britain too, but its inherent unfairness led to its legal abolishment under a 19C law I think called the "Truck Acts".