Despite being a snake, Naota would remain cool and calm. He'd come up with solutions while trying to save as much of his harem as possible in order to make himself look good. Lemons out of lemonade.
If he were with MEN, then he'd keep his cool, but he'll backstab and throw people under the bus just to survive.
It he were by himself, he'd freak the f out, but still try to use his wits to escape.
In his stick figure form, he'd just slip through the crevices and escape :v.
Maybe a Scooby-Doo villain would try and chase him, he'd hide beneath the floorboards and stick his hand out to trip them. :v