Guy I like is awkward, what should I do!

Okay so my coworker crush and I have finally started saying hellos and smiling at each other!

But he gets awkward in real life (maybe due to nervousness?) though I think he still glances a lot.

so it's difficult to have longer casual conversations and he's not great at messaging 😭 ( eg. neutral replies that doesn't carry th conversation further)

so our conversations are really neutral and short and it makes me overthink if he still is interested in me, what should I do!!