I had a lovely one the other night, arrogant guy bullying a table of semi-newbies when I got moved to the table...He raises on button I call in BB with

Flop

I check call
turn

Ooh, now then....
I check call, risking a draw hitting, putting him on AK by now
the river's a blank, I bet out 3/4 of the pot
He dwells and dwells, and does that annoying thing some people do of going through what I might possibly have verbally and so I say to him
"ask me one question, any question..I'll answer you truthfully andf to prove it whatever happens I'll show you my cards at the end of the hand"
He asks "Have you got top pair?"
I answer "yes", as I have, only more so (so I haven't lied but haven't told the whole truth)
He calls in a flash with AK and I beat him with two pair
Needless to say he shut up with the "impress the newbies" stuff thereon in!
to answer the beagle's questions
a) yes lie, selectively and to an opponent who might be troubled by you
b) create the illusion you are a bad player, ig you need to create the illusion