You do have our energy!

But it comes out in different ways.

When you laugh at our jokes, or respond (in or out of character) to our banter, or lean in with keen interest during an epic monologue, you feed our energy with yours. I can't get into a back-and-forth with a brick wall; even if you just laugh and describe what your character does instead of acting anything out, if I know you're having fun with it that gives me the mental fortitude needed to keep acting ridiculous.

Being the only one in character is one thing, it's a little awkward at first but once everyone knows it's your thing it's fine, but if you're the only one in character and everyone else just kinda deadpan responds it's an instant vibe kill. If there's someone in your party that is always in character, even if nobody else is, that means you make them feel comfortable enough to express their character, and that isn't nothing! I know they appreciate you letting them channel their character.