4. Always praising: When you are always praising your child and are so effusive in praise then the chances are that they will stop believing you. Children who receive a steady stream of parental compliments are likely to experience a big letdown when they get into a larger world. Although youngsters need positive feedback when they do well, parents should temper praise with honesty. For instance when a child is told constantly that she’s the most beautiful person in the world, but n school kids make fun of her nose, she picks up on the inconsistency.  Avoid backhanded praise such as “You finally did that which I thought you will never be able to.” The statement sends the message that the child’s progress has been slow and at the same time it conveys that you have little faith in his ability or intelligence.

5. Calling them or labeling them.
Most children believe what their parents tell them. If the father calls the child a loser; he begins to see himself as a loser. Then when bad things happen to him, he tells himself that he deserve them because he is a loser. When positive things happen, he thinks that it is just because he got a lucky break. By cornering your child son, you had pressured him into lying and then compounded the incident by calling him a name. To express anger without being hurtful, criticize the child’s behavior instead of the child himself. Don't say that you are a slob. Instead try to say that your room is a mess.

6. Gender stereotyping
Avoid gender labels. For example, calling a boy a "sissy" or "crybaby" reinforces harmful sexual stereotypes. A consistent pattern of gender stereotyping may make it difficult for boys to handle intimacy later in life.

7. Threatening
Like false compliments, false threats undermine a parent’s credibility. Try replacing a threat with a promise. The idea is to build motivation and encourage the desired behavior. Emphasizing the positive by giving the child a logical reason for doing something works with children of nearly every age and with you too.

8. Saying ‘Not now.’
When you say not now to the child, a child feels that you have no time for him. For example you have to go to a party and the child is eager to show his project work to you while you are putting on that makeup and say not now. You might have said it because you are running late for the party or the meeting but to the child that means that he and his project are not worth your time.
Of course, there are times when every father or mother has to tell a child to wait until later. But a persistent pattern of putting off can leave a lasting impact.

Children respond best to those acts and words that they perceive as encouraging, and worst to punishment and degrading comments, which inflict discouragement. Encouragement enables. Discouragement disables and that’s the secret of smart parenting.