My crush (25m) made our first hug awkward, and then initiated a 'goodbye' hug that was very loose. Is that a good sign or a bad sign?

My crush (25m) is a guy friend I've known for over 6 months. I (22f) have initiated small physical contact (e.g. standing close to him, touching his forearm/shoulder/lower back), and he has barely touched me. The most he's done is shake my hand, rest his knee on mine, stand close to me...that is all.

Today, after months and months, I decided to initiate a hug when greeting him, and he turned awkwardly and made it a side hug. It was very loose (our chests barely grazed). I was worried I overstepped. But then, when we were saying bye, he stood close to me, turned to me and opened both his arms. I went to hug him, but he reciprocated hugging very loosely and (once again!) avoided our chests touching.

I am so, so happy he initiated the last hug. He doesn't hug any female friends as a greeting (only handshakes), so it was so cool! I just wanted to get some advice on why he's making it so loose? Is that a good or bad sign? I get the impression he isn't very experienced with women. I didn't realise he wasn't. I'm hoping to be more flirty with him in a few days.