While autism is usually diagnosed in childhood, some people remain “off the radar” for a long time and only receive a diagnosis much later. One possible reason is that they have learned socially appropriate behaviours, effectively camouflaging their social difficulties, including maintaining eye contact during conversations, memorising jokes or imitating facial expressions.
This pattern of behaviour could have serious consequences for the lives of some people with autism. It is easy to imagine that camouflaging demands significant cognitive effort, leading to mental exhaustion over time, and in extreme cases perhaps also contributing to anxiety and depression.
If there are gender differences in camouflaging, this could also help explain the well-known male preponderance in autism spectrum disorders. At least part of the gender imbalance may, in fact, stem from an under-diagnosis of autism in girls because they are better at “masking” symptoms.
https://digest.bps.org.uk/2017/02/24/th ... +Digest%29
I have never received a diagnosis of ASD or NLD. I do my best to make eye contact. However I have never memorised a joke(never told one) . As for imitating facial expressions if I do it's on a subconscious level.