If you follow me on Instagram or know me personally, you know that I can see and communicate with the spirits of dead people.
I'll save all my stories for another time...but I came across this list from SWNS about the top signs that a ghost is nearby. These are just a few common ones that I've experienced:
1. Your pet starts acting weird. Maybe they're staring at the corner of the room "watching something," but there's absolutely nothing going on. Or, they start barking or pacing for no apparent reason. Of course there are so many factors they could be reacting to, but ghosts are a possibility!
2. Sensing a "presence" in the room. You may not see anything, but it just feels like there's someone there.
3. A very distinct smell with no explanation of why it's there, like your grandmother's perfume.
4. Hearing a voice when you're alone.
Get the full list here.
I also want to add that sometimes lights flickering or electronics acting weird could potentially be a sign that a ghost is nearby. Spirits love playing with electricity (they're energy, too).
Also, not to totally freak you out, but these things can be experienced literally anywhere. Contrary to popular belief, you don't have to be in an old home or cemetery to see ghosts. This can happen in newly built homes, your workplace, or even the grocery store.