Not all baseball tips on hitting are etched in stone but here are several very good guidelines to follow:
A Balanced and Workable Stance
All good athletes are balanced almost all the time. It gives you a solid, comfortable foundation, which is where hitting begins. Some very good hitters find it useful to have a little body movement while in their batting stance. They may rock a little back and forth which they find relaxing. It's almost impossible to have your muscles tighten and tense up when your muscles are moving. You can then be quicker and shift your weight much better than someone who is just standing there like a statue. It's identical to a goalie in hockey. If he stands up straight like a statue, what chance will he have to move freely to make a save on a slap shot that's traveling close to 100 mile per hour? What chance will a tennis player have waiting for a serve in excess of 100 miles per hour? None of them will have a good chance and neither will a baseball hitter.
Striding With the Front Toes Slightly Closed
If your toes are slightly closed, it encourages you to keep your front hip and front shoulder closed as well. In other words, instead of having the toes pointing straight out away from your body when you take your stride, turn them an inch or two inward, back toward the catcher. If you point the front toes out toward the pitcher, it will encourage you to open your front side too early which will create many baseball hitting problems.
Have the Bat Fully Loaded When the Stride Foot Touches the Ground
All good hitters have the bat in the "launching position" when their front foot completes the stride. You stride and then you swing. They are two separate movements that should happen very quickly and smoothly but they are separate movements.
Making an Aggressive Motion Toward The Pitcher
A lot of hitters do not do this but all the great hitters do. That is where the ball is coming from and that's where you should be going. Real good hitters go into the ball to hit it. It's a common baseball hitting problem to not go toward the pitcher when swinging. The reason it's such a common baseball hitting problem is because it is simply not natural to move your body toward a baseball that someone is throwing in your direction.
Having a Tension Free Swing
"Tension is a hitter's worst enemy," is a quote that's been around for decades and is still one of the best baseball tips on hitting. Tension destroys a fluid, graceful swing that's necessary for hitting the ball properly. Don't squeeze the bat too tightly and don't tighten up your muscles. Like mentioned above, many very good hitters have a slight waggle to help them relax.
Head Behind the Swing
The real good hitters actually see the ball a little longer than the weaker hitters. They literally lower and turn their heads when making contact. You simply can not keep your head facing the pitcher and look at the baseball out of the corners of your eyes when trying to make contact.
Hitting to All Fields
Rarely will you find a hitter with a high batting average who limits himself to hitting the ball to only one part of the field. Pay attention to the old expression, "hit it where it's pitched." In the long run, you will be much better off.
Hitting Through the Ball
Hitting "through the ball" is one of the more important baseball tips on hitting. You should pretend that you are trying to hit three or four baseballs that are tied closely together with a piece of string, instead of hitting only one baseball. This will help you keep the bat in the hitting zone longer and hit through the ball.