Silly question, yes, but I'm honesty quite curious here.

I'm used to my snake staring at me. He actually does that quite often.
Recently, though, he's been doing something strange. Sometimes he'll start to emerge from his hide and stare intently. Over the course of a few minutes, he'll come out, flicking his tongue at me until he reaches the glass. If I made any sort of sudden movement, it seems to startle him, but otherwise he'll sit there and stare at me, flicking his tongue.

Now, he's a weird little guy sometimes, but he's fairly smart, so I'm wondering if this actually means something or if he's just doing something dumb again. (Between wedging himself in a paper towel roll and squirming into the crevasse between the glass and the hide, I've seen my share of strange behaviors.)