Can't seem to find any definitive answers on this one. So here is my first ever post.
I am building a Scout and Thug Unchained Rogue / Snakebite Striker Brawler. The build is focussed around Scout charge into Unarmed strikes for Sap Mastery, and then Enforcer to intimidate and make them run away Frightened (Thug). Building towards Shatter Defences by level 8.
I'm wanting to take the talent Underhanded, but my first question is - how does that work with Unarmed Strikes? How do i conceal fists/Headbutt/Feet? Do i even need to or is that an auto-pass? Is it a Bluff Check? Can i skip the whole quick-draw feat/bandit archetpye thing that would be required to draw a hidden weapon as my fists are just fists?
Secondly - Invisibility. if i am concealed does that mean my weapons/fists are also concealed? If i snuck up to someone while invisible and they weren't aware of me, could I punch them and activate both Sap Mastery and Underhanded?