Another strong sign is how much attention he gives to the details. He remembers the small things you mention, like your favorite coffee or the show you’re currently watching, and brings them up later to show he’s listening. Compliments, both subtle and direct, are another big clue, especially when they go beyond appearance and focus on your personality or talents.

Jealousy can also slip through in small ways. If he notices you talking to someone else or sees you laughing with another guy, his reaction might change—even if he tries to hide it. It doesn’t always mean he’ll act possessive, but his mood might shift, and that speaks volumes about how much he cares.

Finally, his effort to stay connected is a clear giveaway. Whether it’s sending you messages throughout the day, reacting quickly to your posts, or finding ways to spend more time together, it shows you’re on his mind. These little behaviors, when combined, make it pretty clear that he’s not just being friendly—he’s definitely crushing on you.