This is taken from INTJ forum, but I found it quite accurate (and amusing).
ENTJs:
- They're practical when it comes to sex.
- That being said, they really like sex.
- Sex.
- They like to socialize, a lot.
- They hate socializing, a lot.
- The last 2 makes more sense when you realize that they have very high standards when it comes to intelligence and sensibility. They're really picky about who they hang out with. They're also very picky about who they come in contact with.
- The last statement also applies in reverse. People will either love or hate an ENTJ. Those who have been filtered out as "approved" by an ENTJ will be drawn to them. There is an exchange of mutual respect.
- If you break an ENTJ's trust, watch out. Don't even try making up for that.
- If an ENTJ has an interest in a subject, they will become experts, fast.
- Once an ENTJ is an "expert", its really hard to change their minds about it. They don't do anything half-assed, so you better have a solid case not only why you are right, but where they went wrong, and how it applies in some useful manner.
- This stubbornness doesn't just apply to fact, it also applies to opinion. They have very good reasons to have said opinion. In which case, don't try to change their minds. Because its just an opinion.
- However they do respect other people's opinions as long as it doesn't infringe on their own. This goes back to the mutual respect statement.
- Sex.
If I were to compare INTJ and ENTJ, this is the simplest description: An ENTJ is the outgoing and strict version of an INTJ. That really makes all the difference. I myself, as well as any other INTJ I have observed, tend to be reluctant to social investment (although we love it once we get past the "shy" stage), and are laid back (sometimes to our detriment). But those aren't trivial. You flip them, and you have a very different person; the ENTJ. This is the ENTJ's advantage over the INTJ. However the disadvantage is that they can burn themselves out trying to deal with the imperfections of other people or situations.