How do I get my boyfriend to come out of his shell?

So my boyfriend is super shy, not just in public, but with me too. Why? I've tried to tell him about it before and he said "It's just how I am" I kinda feel bad for him, he's kinda socially awkward too.. Don't get me wrong he's a sweet guy and he treats me very well and I do love him. I just want him to kinda open up a little, I do talk to him in public around my friends and his friends to kinda help him talk more.. He does talk back when I'm talking to him, but he doesn't keep the conversation going very well.. How can I help him open up?

(I started dating him last month if that helps clear things up)
How do I get my boyfriend to come out of his shell?
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