Prosecutors also played store security footage showing Floyd in Cup Foods for about 10 minutes, adding to the mountain of video documenting what happened.
Martin said that inside the store, he asked Floyd if he played baseball, and Floyd said he played football, but it took Floyd some time to respond, so "it would appear that he was high".
Chauvin, who is white, was sacked by the city's police department the day after Floyd, an African American, died in custody. The video showed officers trying to get Floyd into a squad auto, then struggling with the police.
Martin said he thought Floyd's death could have been avoided if he hadn't accepted it.
At one point, one of the officers says "I think he's passed out" and asks if they should "roll him on his side".
The bodycam videos include the moment Floyd was arrested at gunpoint for allegedly passing a fake $20 bill and his desperate pleas that he "can't breathe" as he is pinned facedown in the street by officers.
Mr Martin said he immediately believed the 20 dollar bill was fake.
"I don't have a mama either", McMillan said before court officials made a decision to take a break questioning him.
"I took it anyways and I was planning to just put it on my tab", he said, meaning that the amount would be taken out of his paycheck.
After Ross told Floyd that she and her son's father were no longer in a relationship, he got her number - and over the next three years, they saw each other almost every day, she told Minnesota Assistant Attorney General Matthew Frank.
Martin was among several people who have testified about their frustration and anger as they witnessed Chauvin kneeling on Floyd's neck outside a convenience store last May.
"He seemed to be having an average Memorial Day, just living his life", Mr Martin said.
Eric Nelson, Chauvin's defense attorney, claimed in opening arguments that Mr Floyd's death was due to drugs and underlying medical conditions and not asphyxiation.
Martin said that when Floyd was inside the store buying cigarettes, he spoke so slowly "it would appear that he was high". Officer Derek Chauvin's knee pins his neck, another officer's knee holds his back and a third officer holds his legs, with the officers talking calmly about whether he might be on drugs. "George was motionless, limp".
Also testifying on Wednesday was Charles McMillian, 61, who said he was driving by that day and stopped to see what was going on.
At one point during his testimony, McMillan broke down sobbing, dropped his head, and removed his glasses to wipe tears from his eyes after prosecutors played the video of police putting Floyd in the vehicle.
As Floyd was pinned down by Chauvin and other officers, McMillian, the bystander, could be heard on video saying to Floyd, "You can't win" and "Get up and get in the auto".
Earlier, a Minneapolis firefighter who wept Tuesday as she recalled being prevented from using her EMT training to help Floyd returned to the stand briefly Wednesday.
Chauvin has pleaded not guilty to murder and manslaughter charges.
"I felt helpless", McMillian said.
Asked by a prosecutor why he did so, Mr McMillian said: "Because what I watched was wrong".
Four killed in shooting at office building in Orange
Our hearts are with the families impacted by this awful tragedy tonight", California Governor Gavin Newsom said in a tweet . Few other details of the shooting were made available although local reports said two people were wounded by gunfire.
BC's cases surpass 100K since start of pandemic
Any residents with questions about COVID-19 or the vaccine interest form may call Douglas County's help line at 785-864-9000. A new outbreak has been declared at Vernon Jubilee Hospital , while the outbreak at Mission Memorial Hospital is now over.
Ontario reports 2,333 new COVID-19 cases, 15 deaths
There are at least 1,229 cases of the B.1.1.7. variant in Ontario , as well as 70 B.1.351 variant and 92 P.1. variant . Another 1,477 cases have been labelled resolved, bringing the total number of resolved cases to 320,409.