Parameters, a very good tip on that is to have the expression you are drawing, yourself.
If your drawing happy, you can't be or feel sad. You smile when you're happy, so the drawing should smile.
If your drawing angry, you should make an angry face=)
It really works, and often it let's you come forth to draw the emotion almost prefectly(If you can draw).
This method works also for different drawing styles. Don't just start drawing without thinking and visualizing what you want to draw.
Take a minute, focus and think "okay now I will draw this, and this.", keep the thought, try and shut all else out while drawing.
Doing this, by visualizing what you want to draw is useful for a number of things;
You will manage to draw what you are drawing much better.
In time, your mental recognizing and visualizing of images will become better, and clearer. This helps for remembering.
Your focus will get better. By focusing on something, and doing it many times learns your mind to block other things out much better then normal.
Many people find them irritated, or stressed when there are lot's of things going on around them, or when there's little.
Changing drawing styles is like looking into different books. When you look at it, you shouldn't think about anything else. You need to think about
all the things that are about what you're thinking about or looking at. If wanting to draw chibi, after a long while of drawing "normal", then you
have to think; The chibi are small. All body parts are simplified. Heads are bigger. Faces are overexaggerated and so on and so forth.
Hope this helps you =)
