Build a strong relationship with your kids. Child psychologists say that your connection with your kids should start from the time they were born. So if you have a newborn in the family start bonding with your baby as early as now. It's not yet too late to start with your young and/or teenage kids though. Manage your time and find ways to prioritize them always.
Avoid being punitive. Punishing kids for every misdeeds they make can harm your relationship with them. Actually, no parent-child relationship is born in such a set-up. Guide them in a positive way. Encourage them to do good in school, to behave at all times, to love their siblings, etc. in a supportive manner. By doing these, your kids will blossom into adulthood and your relationship with them with all the goodness you could ever imagine.
Don't give rifts a chance in your relationship. Do you feel like your kids are always pushing you away? Don't withdraw from gaining their attention and cooperation back unless you're going to use it as a strategy. Treat every instance as an opportunity for you to be closer to them.
Be available for them all the time. Kids open up and share their thoughts in a relaxed environment. Try your best to show your kids that you have the time and energy to listen to their stories without judging them. If you become successful at this, you will find them looking for you - and not for their friends and other people - when there's something important they need to share.