Masking seems to have a negative connotation. Usually, and indeed in the Wikipedia article above, it's presented as a boundary or defence mechanism against societal pressures. But interestingly, etiquette involves a lot of masking and the aim is to make interactions more pleasant for all parties.

This is similar to masking but also very different. I just don't talk about geek stuff with family and friends back home because they are not interested. They do, however, know I'm a geek so I'm not "hiding" that from them.

Nor did I suffer abuse or humiliation from classmates or coworkers that made me change my behaviour.