4 Year Old Rude Talk

I have a 4 yo DCB who says and does a lot of rude things. The problem is that I don't know how to get him to understand what he is saying/doing is not...

[My3cents]

Need ideas on a child that whines whenever you talk to her. Her response of don't bother me. Do you want to play with the toys? aaiiiiiggggh It is...