How does a legendary actor spend a day dedicated to him by a world-renowned film festival?

Well, if the actor is Bill Murray, you spend it in your room, with people periodically popping in to warn you about the humidity.

“Most of my day’s been a weather report,” Murray told a packed audience at the TIFF Bell Lightbox Friday.

The iconic actor is in town for the premiere of his latest movie, St. Vincent, in which he plays a cantankerous retiree who befriends the young boy next door. TIFF decided to celebrate Murray Friday, declaring the day Bill Murray Day.

Hundreds of fans had streamed through the cinema throughout the day, watching free screenings of three of Murray’s classic films — Stripes, Groundhog Day and Ghostbusters. After Ghostbusters, Murray and director Ivan Reitman took questions from the audience, many of whom were clad in clothing plastered with Murray’s famous face.

“He’s just a great actor. I think he’s just a people person. He’s down to earth,” explained Tyler Markham, who sported a T-shirt emblazoned with Murray’s face, and had a sticker of the actor on the back of his wheelchair.

Others sported costumes depicting some of Murray’s most famous characters. A trio dressed in outstanding renditions of the Ghostbusters outfits. Another guy wore a basketball uniform straight out of SpaceJam, with “TuneSquad” written across the front and “Murray 22” on the back. One young lady wore a black track suit, a bandage over her eye and carried some dead flowers, an homage to Murray in Broken Flowers.

There was even an infant dressed as the Stay Puft marshmallow man from Ghostbusters.

“That is one good-looking baby,” Murray said. “There’s something you don’t see every day.”

Caitlyn Weaver was one of those who won a ticket for a T-shirt she’d created the night before. “Bill You Murray Me?” The shirt proclaimed, with a graphic based on The Life Aquatic With Steve Zissou.

“I just love him,” Weaver said. “”I feel like he’s a real person. I believe he doesn’t think he’s a star.”

It was Murray himself who had the best outfit of the day, however. Sporting red pants, a blue plaid button-up shirt and a lumberjack hat with flaps, the actor took the stage after the Ghostbusters screening to do a special Q&A for the fans.

His outfit for the evening actually had ties back to Ghostbusters, Murray told the crowd. He knew working on the film that he was part of something special that would affect his future.

“I knew then I was going to be rich and famous. And wear red clothes and not give a damn,” Murray said.

The actor’s career has skyrocketed since Ghostbusters was first released 30 years ago. And Murray says there’s a simple secret to his success — being relaxed.

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“I think the only reason I’ve had the career life I’ve had is someone told me some secrets early on about living,” he told the crowd. “The more relaxed you are the better you are.”

Being relaxed and open is a lesson Murray applies to all aspects of his life, whether he’s filming or taking the wheel from a saxophone-playing taxi driver. The openness has resulted in a series of myth like legends about the star, including French-fry stealingand doing the dishes at a house party he crashed.

Many fans see Bill Murray as the epitome of cool. But what does it actually feel like to be the man, the myth, the legend, one fan in the crowd asked.

“That’s a tough question,” Murray answered, before encouraging the audience to contemplate what it felt like to be themselves.

“There’s one thing that you are, you’re the only one that’s you,” he said.

And the only way to know what it’s like is to constantly work at knowing you, Murray added.

“That’s where home is.”