One common prank could be Naruto switching the Hyuga clan's training dummies' positions. This would mess up their training routine as the Hyuga are very precise in their movements and training. They rely on the familiar layout of the training area, and Naruto's prank would throw them off balance.
Sure. Naruto might use his transformation jutsu to turn into a Hyuga elder and start giving really strange and out - of - character orders during a clan meeting. The Hyuga members would be completely bewildered as they follow the elder's words religiously. It would create chaos and hilarity at the same time.
One of the funniest pranks could be that the Kyuubi makes Naruto's clones start singing cheesy pop songs instead of following his commands. Naruto often uses his clones in battles and for various tasks. So when he sends them to attack an enemy, they all start singing and dancing instead. This would not only be a shock to Naruto but also to his opponents. Another great prank would be the Kyuubi making Naruto's body move in the opposite direction of what he wants. So when he tries to jump forward, he jumps backward instead, leading to all sorts of comical situations.
A really interesting 'Naruto Hyuga' fanfiction is 'Hyuga's Hidden Power'. It delves into the untapped potential of the Hyuga clan. In this fanfic, the main Hyuga character discovers a new form of their Byakugan power, which makes for an exciting read as it changes the power dynamics in the Naruto - like world. It also has a great plot with lots of twists and turns.
Well, it depends on the specific fanfiction. There are countless fanfictions out there, and while some may choose to make Naruto part Hyuga for various reasons like adding a new twist to his character development or exploring a different kind of relationship with the Hyuga clan, others may not go in that direction at all. It's really up to the creativity and ideas of the individual fanfiction authors.
One of the pranks Naruto might do is to mess with the Anbu's communication system. He could use his knowledge of chakra and some basic electronics (if we assume some modern - like elements in the fanfiction) to scramble their signals. This would make it difficult for them to coordinate with each other, and they'd be running around trying to figure out what's wrong while Naruto watches from a hiding place, having a great laugh.
Naruto could enlist the help of his friends like Shikamaru. Shikamaru could come up with a really elaborate plan. For example, they could set up a fake mission where Ibiki thinks he's in charge, but it's all just a setup for a series of pranks. They could have actors pretending to be enemy ninjas who act really silly instead of being threatening. And Naruto could keep popping up in unexpected places during this 'mission' to further annoy Ibiki.
In a Naruto pranks Hyuuga fanfiction, Naruto might use his typical mischievous tactics. For example, he could use his shadow clone jutsu to create chaos around the Hyuuga compound. Maybe he'd make clones that pretend to be important visitors and then act all silly to embarrass the Hyuuga. It would be a really funny scenario as the serious Hyuuga clan tries to deal with Naruto's antics.
Well, in some fanfictions, Naruto has been known to put salt instead of sugar in Sakura's tea. She takes a big sip and spits it out right away, which is quite funny. Also, he might play a prank where he makes it seem like Sasuke has a crush on Sakura by leaving fake love letters from Sasuke around. It causes all kinds of chaos and blushing between the two of them.
Sakura's reactions can vary. Sometimes she tries to get revenge on Naruto for his pranks. If he plays a prank that makes her look silly in front of Sasuke, like the fake love letter prank, she'll be really mad and try to think of a way to make Naruto pay. Sasuke might pretend not to care, but if the prank affects his image too much, like the hair product switch, he'll give Naruto a cold stare. Kakashi is more laid - back and just watches the whole thing unfold like it's entertainment.