How can you tell if signs and synchronicities are real?

How can you tell if signs and synchronicities are real? I've been getting a lot of signs recently from someone I lost. But I keep wondering if they're real or if I'm deluding myself and seeing what I want to see. Yesterday I got a sign that had me emotional for most of the day. Today, I turned to an old book on my Kindle: Sidewalk Oracles by Robert Moss. And when I turned to the first page, another synchronicity! It said that the way we feel about the sign is a clue to its meaning. FYI, I've been feeling gratitude for these signs and synchronicities -- apparently that's typical of people who regularly receive such signs. I do believe these signs have been sent by the person I lost. But in the end, maybe it's less about what's "real" and more about the meanings we find in these coincidences or seemingly insignificant events. As humans, we're meaning makers. We may as well make the meanings we give things positive. ❤️✨🫶