Despite the fixation with sex and girls, many of his postings reveal a childish side. He tweeted a picture of Scooby Doo gummy snacks and said he loved them so much he ate them constantly for lunch.

Mundane postings included references to Krispy Kreme doughnuts, ice cream, going to the movies and pulling all-nighters.

“He’d do anything to make you smile,” Laquavia Smith, 17, told The Herald over Twitter. “He was the funny guy.”

She had known him since the seventh grade, when they were in Highland Oaks Middle School together, and says she viewed him like a brother.

Once in eighth grade, he climbed atop a table and started dancing, just to make everyone laugh, she said.

“He was just a funny, goofy person who liked to joke around and make people laugh,” said Courtnie Lee, another friend who corresponded with Trayvon over Twitter. Like Laquavia, Courtnie, 17, also met Trayvon in middle school.

Trayvon’s Gmail account also surfaced briefly. The website Gawker was able to obtain a screen shot of what his inbox looked like before the account was deleted. The inbox showed almost every email was in reference to upcoming SAT exams, scholarship opportunities, and invitations to an open house at Saint Leo University, a Catholic liberal-arts school between Tampa and Orlando.

The question is whether Trayvon’s digital footprint on sites such as Facebook and Twitter may factor into a potential case against his shooter, George Zimmerman.

Some experts say it does.

“Basically what it boils down to is… whether or not [Zimmerman’s] conduct is reasonable,’’ said University of Florida criminal law professor Kenneth Nunn.

“In order to determine that, you’d want to look at what [Trayvon’s] behavior traits have been, or may have been over time. When I’m trying a case and I’m concerned about a person’s character, I’m looking at anything.”

But Lyrissa Lidsky, a professor of media law at the University of Florida, cautions that a person’s online persona may not offer a true picture of who they are, especially among young people.

“I think you have to take these social media posts with a grain of salt, because they don’t necessarily tell you what this teenager was like in person,” she said.

One example: Trayvon’s purported “grills.” In his Twitter avatar, he appears to be wearing some, but friends say they’d never seen them before.

“I didn’t know he had those until I saw the picture on the news,” said Ricaysha Milton. “Every time I see him in public he never has them on.”

Trayvon family representative Ryan Julison told The Miami Herald that Trayvon did not have permanent grills on his teeth.

“The persona you have online is not necessarily the same as the persona you have offline,” Lidsky said.

“It’s an artificial reality... It’s almost like make-believe.”

Miami Herald staff writer Frances Robles contributed to this report.