Quote Originally Posted by CThruTheEgo View Post
I do occasionally use bluff for this purpose.

I am rarely able to get the bluff, stealth, assassinate combo to work for me though. It's usually the case that the mob turns around and attacks me just as I'm getting stealthed, which then breaks stealth. I don't know what it is exactly. I have bluff, stealth, and assassinate easily accessible on my hotbar, so doing them quickly is not the problem.
Stealth first, then bluff, if you aren't already engaged in melee with them.

If you are, and you're still having trouble...I don't know...get faster hands? Or a better connection/computer? Or try stepping back, hitting bluff, breaking the animation with an attack, sneaking then Assassinating? It works for me almost every time I do it.