Hypocrisy means hypocritical
When you do hypocrites, you are actually friendly to someone while you do not believe it. If you are hypocritical/do you do otherwise than you really are. Often it is also false behavior. Hypocritical comes from the Greek hupokrites (actor). You do so differently than the reality. In politics, someone is often called hypocritical. It is often difficult to judge whether something is hypocritical, because there may be some cultural differences: what is absolutely unacceptable in one culture can perhaps still be the same in another culture.