Not crazy talk bro. I get that feeling, that weird am I the centre of attention (negative) or are those strangers giggling at me?  Gym has been fun for me, I wish you start to experience that too. Most people are too engrossed with the correct form and counting reps to pay attention to anyone else. As for the phone ordering by hams, they are the ones who usually have a conversation with imaginary friends and roommates before ordering two family meals plus 4 sides. See, they are ashamed on a very basic level but because of society, they don't even know that.