Tip no. 2:
Start with very fine lines to outline/plan out the area of the drawing. If the drawing will be eventually printed or scanned in, using a blue pencil will also work.

Tip no. 3:
Sometimes, it's easier to draw someone you've never met. You tend to be more objective with your rendering.

Tip no. 4:
It's easier to draw males than females. They aren't as sensitive as women. You have more freedom to draw what you see.

Tip no. 5:
Babies from real life are the hardest to draw because they just can't keep still. It's best to have their parent carry them in their laps.

Tip no. 6:
Start your drawing with the feature that strikes out the most. I usually draw the eyes and then gravitate outward.

Tip no. 7:
Pencil is a more forgiving medium. You can erase mistakes. But unlike ink, you need to excert a lot more pressure to get those rich blacks. That's why you tend to get hand cramps faster when you use pencil.

Tip no. 8:
After drawing a few faces in succession, you will notice that you are subconsciously locking in to a ratio between subject and drawing. Try to be conscious of that ratio and if you keep that constant, you will have better chances of getting a good likeness.

Tip no. 9:
Try to avoid making direct eye contact when you work with a live model. Your model will get conscious and so will you. Try stealing quick glimpses of the eyes instead.

Tip no. 10:
Have fun. If you're not having fun, it'll show in the cartoons.