FLASH MOB CHOIR

Calling all shower singers; the Sydney Flash Mob Choir wants you. Register your mobile number online to receive details of the choir's next event, then just turn up at the City Recital Hall and sing your heart out. No commitment or rehearsals required. Once a month, days and times vary, City Recital Hall, 2-12 Angel Place, city, 8256 2222, cityrecitalhall.com/events/flash-mob-choir.

JOIN THE AUDIENCE

Turn off your television, leave the sanctuary of your lounge room and head into the ABC to join the audience for Q&A. This is your chance to shake the system, share your beliefs and question the panel with Tony Jones. Monday, ABC Studios, 700 Harris Street, Ultimo, 8333 1500, abc.net.au/tv/connect/audience.htm.

MATCH POINT

There's no need to pay to play at the tennis courts at Darrell Jackson Gardens. You don't even need to book. Just grab your gear, head to the courts, write your name on the board and wait your turn. Daily, Darrell Jackson Gardens, Smith Street and Carlton Crescent, Summer Hill, innerwest.nsw.gov.au/places-spaces/parks-and-playgrounds/summer-hill/summer-hill.

QUIET YOUR MIND

Waking up early never felt so good. Start the morning with group meditation as the sun rises over Bondi Beach. An ocean swim afterwards will complete the rejuvenation of your soul. Thursday, sunrise, Yoga Concourse, South Bondi Beach, text 0433 140 466 for details, bondimeditation.com.au/group-meditations.

FILMS AT THE GALLERY

Discover a world of curated screenings of classics, shorts, documentaries and experimental films programmed in conjunction with the Art Gallery of NSW's major exhibitions. The auditorium for screenings is tucked at the rear of the gallery, three storeys below ground level. Wednesday, 2pm and 7.15pm, Sunday, 2pm, Art Gallery of NSW, Art Gallery Road, The Domain, 1800 679 278, artgallery.nsw.gov.au/calendar/type/films.

STAND-UP

There are plenty of comedy nights around town that offer the chance to have a chuckle without paying a cent. The courageous can sign up for the open mic portion of the show at Redfern's Tudor Hotel. The Eveleigh offers a monthly Sunday-night showcase, while the Harold Park Hotel in Glebe mixes it up with a free comedy trivia evening. Last Sunday of every month, 7pm-9.30pm, Eveleigh Hotel, 158 Abercrombie Street, Redfern, theeveleighhotel.com.au; Thursday, 7.30pm, Sunday, 6pm, Tudor Hotel, corner Pitt and Redfern streets, Redfern, tudorcomedy.com; Wednesday, 7.30pm, Harold Park Hotel, 70a Ross Street, Glebe, facebook.com/HaroldParkHotel.

GOLDEN AGE LIVE MUSIC

The mirrored stage at the Golden Age Cinema bar comes alive on Thursday and Saturday nights with gigs from upcoming musicians. Grab a booth in the basement of the art deco Paramount Pictures building for a chilled evening of live tunes. Thursday and Saturday, 9pm, Golden Age Cinema, 80 Commonwealth Street, Surry Hills, 9211 1556, ourgoldenage.com.au/music.

BEHIND THE SCENES

Pull back the curtain and discover what goes on behind the scenes at the Sydney Theatre Company. About two weeks before most opening nights, the cast and key creatives take time away from rehearsals to hold a public discussion about their creative process. These pre-season briefings are linked to particular shows, but you don't need to have tickets to attend. Various evenings (see website for dates), 6.15pm, Sydney Theatre Company, Wharf theatres and Roslyn Packer Theatre, Hickson Road, Walsh Bay, 9250 1777, sydneytheatre.com.au/whats-on/productions/2017/2017-pre-season-briefings.

CHINATOWN MARKETS

Take in the sights, sounds and smells of Chinatown while browsing the markets. When you've finished shopping, download the free Sydney Culture Walks app to learn about Chinatown's history as you explore the laneways. Friday, 4pm-11pm, Chinatown Markets, Dixon Street, Chinatown, chinatownmarkets.com.au, sydneyculturewalksapp.com.

IDEAS ON STAGE

The University of Sydney brings together leading thinkers, the academic community and the public for a series of robust conversations, screenings and lectures. If you can't make it on the day, catch up with their archived podcasts. Various times (check website for details), City Road, The University of Sydney, Camperdown, 9351 2943, sydney.edu.au/sydney_ideas.

STUDIO VISIT

This intriguing gallery in the back streets of Surry Hills was once the home and studio of one of Australia's most celebrated artists, Brett Whiteley. The studio has been preserved to offer a glimpse into his life and work. There are regular exhibitions and poetry readings on the first Sunday of every month. Friday-Sunday, 10am-4pm, Brett Whiteley Studio, 2 Raper Street, Surry Hills, 9225 1881, artgallery.nsw.gov.au/brett-whiteley-studio.

CREATIVE MORNINGS

The CreativeMornings format originated in New York and has spread like wildfire around the world. Enjoy a breakfast of coffee, bagels and yoghurt while a guest speaker shares a story based on a monthly theme. Breakfast and inspiration before work. Once a month on Friday, sign up for notifications at creativemornings.com/cities/syd.

CASULA POWERHOUSE

There are a whopping six galleries with rotating exhibitions that feature emerging and established artists. Regular curator and artist talks enhance the experience. Daily, 10am-5pm, 9824 1121, Casula Powerhouse Arts Centre, 1 Powerhouse Road, Casula (entry via Shepherd Street, Liverpool), casulapowerhouse.com.

GIVE A LITTLE LOVE

All you need to give is your time, energy and empathy to help OzHarvest reduce food waste and feed those in need. You may find yourself serving food alongside a world-renowned chef or helping out at the rescued-food supermarket with the other volunteers. A fun and rewarding way to give back. OzHarvest, Warehouse G3/G4, 46-62 Maddox Street, Alexandria, 1800 108 006, ozharvest.org/give-a-little-love/donate-time.

KOREAN CINEMA

Snack on Korean treats from choco pies to rice cakes while enjoying a free Korean-language film with English subtitles. The second half of this weekly program kicks off in October. Thursday, 6pm, 8267 3400, Korean Cultural Centre, Ground Floor, 255 Elizabeth Street, facebook.com/CinemaKorea.