Not onscreen, where the actor seems to be everywhere these days, but out in public, where he's adopted a quicker pace to slip by unnoticed.
"I walk really fast, so by the time anybody recognizes me I'm already way down the street," the German-born heartthrob tells the Daily News.
He might want to start walking even faster. With a half-dozen films due out this year, the "X-Men" star is sure to be recognized even more.
The lineup includes "Slow West," an action western thriller out Friday. Fassbender, 38, does double duty as executive producer and star for the first time. He plays Silas, a laconic bounty hunter helping a Scottish teen (Kodi Smit-McPhee) track the girl he loves in 1870 Colorado.
Silas' menacing squint and clipped delivery — "Sure kid. Have a biscuit" is about as wordy as he gets — not to mention the cigar fixed in his mouth, is reminiscent of Clint Eastwood's character in the "Dollars" trilogy of spaghetti western films.
Fassbender says he's good with any comparisons to Eastwood's iconic, gun-slinging Man With No Name.
"I hope [people see similarities], because Clint is my favorite cowboy," he says.
"Obviously we had the little nod with the cigar. Well, 'little' — it's quite a large nod," he laughs. "Clint was always in the back of my mind."
Fassbender, who's friends with "Slow West" writer/director John Maclean, helped get the movie produced. It's the first feature film Maclean has directed.
About a decade ago, Maclean was a member of a Scottish indie quartet called the Beta Band and cut his teeth behind the camera directing their music videos.
He and Fassbender hooked up around 2009 (Maclean was pals with his agent) and later collaborated on two short films, "Man on a Motorcycle" and "Pitch Black Heist" which won a BAFTA (Britain's version of an Oscar) for Best Short Film.
"It was really just about working with John," Fassbender says about his motivation to make "Slow West." "From that first experience, the goal was always to do a feature."
The result mainly serves as a showcase for its 18-year-old lead, Australian actor Kodi Smit-McPhee, who will saddle up with Fassbender again soon as Nightcrawler in "X-Men: Apocalypse," due out next year. (Fassbender returns as Magneto.)
Fassbender says the young actor, who made his mark in 2009's "The Road," didn't need any advice about joining Marvel's $1 billion superhero juggernaut.
"He gave me advice most of the time," Fassbender says. "He's quietly confident. He's an old hat, and he knows what he's doing."
Fassbender has nearly worked non-stop since his break in Quentin Tarantino's "Inglourious Basterds" (2009). Also on his resume are "Hunger" (2008), "Shame" (2011) and "12 Years a Slave" (2013), for which he received an Oscar nod.
The critical acclaim has led to a full slate of films through 2016, including titular roles in "Macbeth" and "Steve Jobs."
So how does Magneto clear his head when the helmet comes off? Fassbender says he's recently taken up surfing, but with mixed results.
"My first venture out was really abysmal," he says, describing an outing in New Zealand's South Island, where most of "Slow West" was shot.
"It was really cold and choppy. I spent about 45 minutes trying to paddle out, but I didn't go down the right channel," he says.