Male coworker acts differently when we talk - Does he like me?

So this man (he is 38, I am 24 and yes lol big age difference) acts around me VERY differently than with others. I was surprised to know he was known as a a 'clown' and 'very lighthearted and humorous' with other coworkers, because he acts extremely serious and his voice is very deep, masculine and low, which is so different than with others. He is not annoyed I'm sure, he loves/likes some of my pictures and messages, in general is quite easy to talk to but the person is very different. Does he try to pursue me with this behaviour? I can't deny I'm attracted to that really, but I don't make it visible and I treat him same way as others. What do you think?

Male coworker acts differently when we talk - Does he like me?
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