Cosby was accompanied by his spokesman into the Montgomery County Courthouse outside Philadelphia on Tuesday.
Constand is the only one of nearly 60 women who have accused Cosby of sexual assault to have her case go to trial, since hers is the sole case for which the statute of limitations has not yet expired.
Cosby's wife, Camille, did not show today.
" 'We're not flawless, are we?' he said, pausing and looking at Camille Cosby, 73".
Cosby is accused of drugging and sexually assaulting Constand, 44, and is charged with three counts of aggravated indecent assault, including allegedly assaulting an unconscious victim and allegedly delivering an intoxicant to a victim.
Jurors asked about the phrasing Tuesday morning during their sixth hour of deliberations, but Judge Steven O'Neill said he couldn't define it for them. Constand - an athletic, 6-foot-tall college basketball staffer at Temple University - said they made her dazed and groggy, and unable to say no or fight back Cosby.
The fast-moving case went to the jury of seven men and five women on day six of the trial after closing arguments gave differing portrayals of what happened between Cosby and Andrea Constand at his suburban Philadelphia estate.
Jackson said Constand told her she had been drugged and molested.
A judge blocked Jackson from taking the stand, ruling it would be hearsay.
Prosecutors countered by saying "fancy lawyering" can't save Cosby from his own words - namely, his admission about groping Constand after giving her pills he knew could put her to sleep.
"You do not try your case on the courthouse steps", Troiani said. "It is not correct, and I can see only one objective for him coming here to do that, and that is to defame our client, and that is the goal of Mr. Cosby and his publicist".
Each of the three counts carries a standard sentence range of 5 to 10 years in prison, but that doesn't mean Cosby could be facing up to 30 years.
In his 2005 deposition, Cosby said he obtained several prescriptions for quaaludes in the 1970s and offered the now-banned sedatives to women he wanted to have sex with. "There was talk of tension, yes, about relaxing, and Andrea trying to relax the shoulders, the head, etc.", Cosby stated in the part of the deposition read to the jury on Monday night. "And I went upstairs and I went into my pack and I broke one whole one and brought a half down and told her to take it". Reluctantly, she said, she took the pills because she trusted him as a friend and mentor, but soon, she felt woozy and had blurry vision.
But I do hate these trials that pit an evolving societal ethic against a flawed human being, one person, albeit a person greatly privileged, to make a point that "we're better, because now we get it".
He also said the pills he gave her were over-the-counter Benadryl, which he admitted can cause sleepiness.
But experts say that if he is convicted, it's likely Cosby's attorneys would be able to successfully argue the charges be combined for sentencing purposes, since they cover the same encounter and conduct.
Constand told police she was semi-conscious as he touched her breast and genitals.
"Ladies and gentlemen, he has told you what he has done", District Attorney Kevin Steele said in his closing argument, according to Reuters.
Cosby did not take the stand to testify during the case.
The disgraced comedian's legal team is insisting Andrea Constand was his lover and not his victim.
Jurors began their second day of deliberations by reviewing more than a dozen passages from a deposition Cosby gave more than a decade ago.
The defence had tried repeatedly since Cosby's December 30, 2015, arrest to have the case shut down. They complained that prosecutors were improperly striking blacks from the jury chosen in Pittsburgh.
Cosby, who was charged by Montgomery County in 2015, faces 10 years in prison and a $25,000 fine and would also be required to register as a sex offender if convicted.