I tend to do the Spock eyebrow raise quite a bit without thinking about it, to the point that people I know will ask if it’s on purpose.
I also will use “fascinating” and I tend to insert logical or illogical into sentences.
Worf’s “It is not funny, but I get it” is something I throw in as well.
If I’m in “Star Trek Mode” I’ll use various Klingon phrases, along with the Vulcan salute as greeting. My wife and I will at times text in Klingon. There’s other stuff as well, but not as common!
I similarly do the Spock eyebrow a lot without realising it.
I also used to do the Data head tilt, again without realising I was copying Data, until someone pointed it out to me. They didn't actually know it was a Star Trek thing but as soon as they pointed it out I realised I was subconsciously copying one of my favourite characters.
That’s great! I didn’t realize how common my eyebrow raise was until someone asked if I was copying Spock. My wife is still convinced I practice and do it on purpose though.