[ Singles & Dating ] Open Question : How can I get him to make the first move?

The guy I've had a thing for for a while now is very very shy.. We flirt a lot, but I feel like I'm ready to be with him.. My problem is that I don't want to straight up tell him I like him. I think the best thing to do is drop him a hint that will invite him to make the first move... But I want to know what makes guys feel safer to make the first move. Keep in mind he's very nervous around girls, and so I want to make him feel certain that he can kiss me or ask me out without being worried. I'd like people with experiences like this to answer, but anyone who has a good opinion that might help is welcomed to answer, too. Thanks (: