What it means when he doesn't laugh at your jokes early on

Early dates create a specific kind of anxiety. He's managing his own nervousness, thinking about how he comes across, deciding if he likes you, and monitoring his own behavior. His brain is not primed to receive and react to jokes at normal speed. This doesn't reflect your humor. It reflects the fact that he hasn't relaxed yet.

Some people take several hours before they start laughing. Others warm up slowly over a series of dates. His flat reaction tells you about his current state, not about you or whether your senses of humor match up. Watch how he acts on date two or three before deciding anything.

The instinct to try harder after a missed joke is the mistake. A good move here is to drop it completely and shift to something else. Ask him a real question, tell him something about yourself that isn't a setup, change the physical environment if you can. This does two things. It removes the pressure from both of you and it lets him see that you're not dependent on his validation.

If humor lands later in the date, great. If not, that's information for whether you want a second date, not a sign to panic. The move is to act like the joke never happened and keep the date moving.

Don't let one awkward joke moment shape your entire perception of him. If he shows zero personality across the first date and seems actively resistant to lightness, that's different. But one missed joke on date one tells you almost nothing.

Give it at least one more date before you decide your humor styles are incompatible. By then he'll be more comfortable, you'll both be more relaxed, and you'll see if humor actually lands. If it still doesn't work after a second or third date, then you have real information to act on.