2) Understanding and Guidance
Many say that kids think differently nowadays and they are more difficult to understand. By recalling the times you were a kid, you can be a father who understands every beat of your children's hearts. Don't just say no to everything they say or want. Listen, understand and guide them in arriving at the right decision.
3) Encouragement and Protection
Learn what they do best and support them in that area. Refrain from making them strive to be the person that they are not. You can encourage them though to do their best in areas they are poor at - like improving their failing grades in Math, doing good in swimming and having new activities or friends. Positive words have power over their lives.
As you encourage them to try new things, there will be susceptible to harm. Be ready also to protect them from hurtful situations and words from other people. If they can feel your protection over them, they will feel secure in your arms and they will trust your presence more than anyone else's.