What can you expect?
Why do Children Misbehave?
Sometimes it's because he wants attention. In that case, picking him up or playing with him might improve his behavior. If the child is old enough to understand, you might be able to explain that you're busy but that you can play with him later.
Sometimes it's because she's bored. Give her a toy or play with her. She might not know rules, or she might be testing to see what she can get away with.
Say "no" calmly but firmly and distract her with a toy. Be consistent. Don't say "no" one time and "yes" the next time. You'll confuse her. You will need to be as persistent as your child!
Children need attention to thrive. If you are going to be a parent, be prepared to spend a lot of time with your child. And remember: if you only pay attention when your child misbehaves, you will be teaching your child to misbehave!