Do you know why people think ENTPs are attentions whores? Most aren't when they are calm.
Not all of them are. I think the impression with ENxP's sometimes is just simply that they want/need a lot of attention being paid to them. If they aren't being listened to or if they aren't getting attention, they will sometimes do things to make sure they get it. Act up, be loud, tell long stories, etc. Don't get me wrong, they are often very entertaining and fun people. I just know from the introvert point-of-view, we sometimes don't get it. We don't want attention at all - we don't want the spotlight, we don't want people focusing in on us, so some of us can't even fathom "trying really hard" to make people focus on us. We find it hard to relate to. It's all relative though - to an extrovert, it probably wouldn't seem like attention whoring. To an introvert, it sometimes does though.
In regards to the ones that are really extreme attention whores, I've sometimes thought, "What would happen if nobody spoke to this person for like a month? Would they end up in a nuthouse or something?" It seems like they crave it/seek it out
that much - like they just have to be the center of someone's attention all the time or their head would explode. That's extreme cases though - or maybe it's just an extrovert "having a moment".
It's sometimes funny (and a bit cruel) if you just ignore one of them who is trying to get attention (not just ENxP's, but any attention whore). Just look the other way, don't make eye contact, don't respond. Just act interested in something else behind them or take a phone call. They almost go nuts. I noticed this not because I wanted to make them uncomfortable, but because sometimes if I'm socially exhausted, I'll sort of "check out mentally" for a few minutes and go silent (a way of recharging the batteries somewhat) and it's like they get uncomfortable if its silent or if you're not into what they're saying or not laughing at the jokes.
Ignoring an extrovert in need of attention = Purposely putting the spotlight on an introvert who does not want any attention.