What's a peculiar habit that you do when you're nervous and etc.?

I chew on my lip

I crack my knuckles

crack my knuckles, chew my lip, bite my nails😁

I chew my lip, tap my right foot, and tap on the table

I get very energetic and fidget with stuff 😁

I daydream idk why though

my face turns red as a tomato

bite my nails or crack my knuckles

I bite my lips and I get fidgety with my hands.. Like I twist them, crack my knuckles, clutch my hand etc..:

I breathe shakily and start getting all anxious and paranoid-like I'll start imagining he worst case scenario "what if I throw up?!" And then I worry it will happen.

Chew on my lips or sweat😅