Tamara Dickson said she and friends would hold a games night for the Drawtism for Autism campaign in Banksia Grove on August 29.
Having participated in previous years, Ms Dickson said she hoped to raise $1000 this year for Aspect, an organisation that supports people with autism.
"My sister Aimee was diagnosed with autism at 2"-years-old," she said.
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READ NOW"Aimee is very creative and is an artist, so for her drawing is how she expresses herself.
"Drawtism allows her to show off her creative side and is a fun game that everyone can get involved in.
"It's also a great reason to get behind Aspect, who provide so much support to those on the spectrum and their families.
"Playing Pictionary and seeing how differently everyone draws gives my friends a bit of an insight into how differently people can interpret things.
"My friends are very supportive and love getting involved and learning about autism."
Communication is one of the key challenges faced by people living with autism, due to impaired communication, restricted and repetitive interests, and sensory sensitivities.
Aspect chief executive Adrian Ford said people who participated in Drawtism in August could help raise funds to support people with autism and their families.
To register or donate, visit www.autismspectrum.org.au/drawtism.