Amateur. Your best bet is to raise your hand as high as you can and act like you know the answer the best and would even elaborate on the topic. The teacher will surely ignore you. Especially if you tend to say stupid shit all the time when asked.
When I was kid I found the best solution to this problem. When they ask me something I was looking them direct in the eyes and answered "I don't know" or "I didn't study". It was way better than the looking down or the "uuuum hmmmm". They couldn't say anything, they just continue with the other students.
What even is this? Paw patrol meme?
Everytime teachers are picking a student to be called, I made eye contact with the teacher, and then turn my head to the stupid dudes / class NPC. Works 100% of the time, they always get called.