I just came into pick up stuff, so I'm trying to talk to as much people as i can(to improve my AA) But i have noticed that most of them don't wanna go into a conversation with a stranger (specially introverts)

Or am i doing something wrong. I usually start conversations like It is very hot today And they're like Hmm, yeah , yeah you're right, huh?

And go silent And then you ask another question or say something and they again do the same thing Basically they don't show any interest.