Podcasts will make you not interacting with people, but listening to podcasts. Talking to people, especially strangers is what you need. I have read a whitepap

Podcasts will make you not interacting with people, but listening to podcasts. Talking to people, especially strangers is what you need. I have read a whitepaper which tells that most of 25+ y.o. people probably will never make new friends anymore. So I use to talk to random people in random situations as often as possible without annoying them. My rule of thumb is to get disappeared as fast as a discussion became even slightly boring for me or for them.