A vet at my workplace salutes me as a greeting every day and I respond. Is that ok or not ok?

I’m in DEP at the moment, due to being an immigrant, so I still work a day job to keep the bills paid until I ship for BCT, but I have a signed contract and sworn oath at this point, so it’s a thing that Is definitely happening at this point bar any unexpected disaster.

One of my co workers is a retired infantry E-5 and has taken a personal interest in teaching me and learning what I know about the modern army (which is obviously all personal research at this point) and genuinely seems to be excited for me.

Every morning when he first sees me he pops a salute off and I have been responding in kind as a gesture of respect (even understanding that I am not presently military, nor is he, nor do you salute indoors or out of uniform, nor do an E-2 and 5 swap salutes as a greeting even if not for all that) but I’m concerned that this might be seen as disrespectful or even just plain silly by any other vets/active duty that come through our workplace (there is a lot, we are just south of Lewis-McChord) and I was wondering if I could get some people’s opinions on this