How can I make a shy guy that I’m seeing break out of his shell?

I’m seeing this guy and he’s very sweet and shows consistency in his actions so I do think he likes me but he never really makes flirty comments or never teases me or anything. Always plays it very safe. I also always have to show him signs of interest only then he does so too. What can I do to make him more comfortable so that he breaks out of his shell?
How can I make a shy guy that I’m seeing break out of his shell?
Post Opinion