as a
main with well over 1000 games in her
the normal build is

after that u normally go for
then
although in some rarer cases u may need to rush
before it if you need to
then u can go
(or
if they have lots of healing)
or void, and toss in
when necessary ( its actually really good on her becuase of the spellshield.
if that shield is still up when u pounce in. it makes a MASSIVE difference
bruiser nidalee build sadly does not work anymore.
although it was REALLY fun when it worked in season 4
nid donest have the base state for bruiser, and since armor is now worth jack shit. she really cant ever be remotely tanky anymore.
right now nid is actaully in a pretty shitty spot...
she is fine if u can reach lvl 4 at 5 min without incident
but her lvl 2 is extremely prone to invades, and her ability to contest scuttle actually horrifically bad.
until her first back at lvl 4 jungler as nidalee is hell
the loss of celerity pretty much was the nail in the coffin for her. as nidalee only ever used it for the 8 extra AP on her first clear. ( her passive gives her 30% bonus movement speed when facing a hunted jungle camp)
now with only 20 ap and not 28.. your damage is lower.. so camps take longer you taking longer to try to kill scuttle with leaves u in danger longer.. and your heal now heals for less because u have less ap.
i don't recommend nidalee right now. like i said.. if u can hit lvl 4 without incident.. she is fine... the issue is... outside of nexus blitz where you are gifted free gold a free lvl 3 and they really cant invade u.
but if anything remotely bad happens before u hit 4... you're pretty much going to be worthless all game if the enemy jungler even remotely uses that advantage on you
as for a clear route. i normally go blue, gromp then blue-side scuttle.. gank for lvl 3 ( it takes 2 minions or 1 cannon minions worth of exp.
even if you dont get a kill you will hit lvl 3, and this will make your reaming clear tremendously easier
is nidalee most important item after
and is nidalee's core item.
as for some neat tricks on nid... there really isnt much she can do.
you can cancel takedown's animation with pounce
and u can pounce and press R mid pounce and land in human form... for a last needed auto from an enemy u cant reach who is at a sliver of health. ( this is especially useful after you get 
outside of that there is in absurdly rare situation where u can land a spear on a once champion pounce to them and then flash to the low target to try to kill them with takedown..
but the situation where you use that almost never happens because takedown does a LOT less damage if they're not hunted.
there really arn't many flashy plays as nidalee.. just get good at landing the spear