Not (really) (one's) scene phrase
Not something that you are keen on or able to do very well.
.
I'm loth to take the job that involves working with lots of figures because maths is not my scene,
When they discussed politics, I didn't say anything as it isn't really my scene.
I guess sport is not Mary's scene because she stayed silent all the time we had been talking about our favorite physical activities
To not like someone's mien.
To show little interest in something or someone.
The origin of this phrase is not clear.