NEET ni Natteita Hatsukoi no Hito wo Shiawase ni Suru made - Ch. 4

[flannan]

The trick is to fake the confidence and blend into the crowd

The trick is, that nobody actually cares. Reminds me of that meme where the poster brought a python in a bag into public transport, and nobody cared.
So, you don't even need to fake confidence.