From my small sample of approximately 20-30-years-old ENTPs:

The males often have a built figure. This is also the reason why I tend to ignore them. They can come off as really "normal", like your average Joe at the gym. That's boring to me and I might misattribute them as S-types. But once they catch your eye there's something different about them. They're much more lively than your average Joe. There's a spark inside them.

Some ENTP males however do not have a built figure. These ones are often more in the intellectual or nerdy side. They still somehow are able to radiate charisma (see Bill Hicks for example, I don't find him too handsome but he's still very engaging person. btw not saying he's intellectual or nerdy so this comparison is a bit funny but yeah). Usually they're very confident and have loud opinions plus they don't care how expressing those opinions makes people feel. Very intellectual and I get the imagination they're like tumbleweeds rolling to every place imaginable and making their opinions heard faster than anybody else.

BUT as an INFJ I must say their tactics to get their points across are sometimes kinda dirty and not intellectual at all. Attacking people's self-images for example. But they still wrap those tactics in the "le intellectual" package. Which people are afraid to question because they're not as intelligent as the ENTP so they think the problem is in themselves, AND I'm pretty sure the ENTP knows at some level what they're doing but they still continue to do it like goddamnit it's getting so stinky here (and somehow the ENTP can make it seem like it's not stinky at all).

The female ones often have some alternative style, blue or pink hair or something. Confident as well yadda yadda.