I love talking with people from Brilliant on Facebook messanger. It's a great app/feature that has given me some of the most intelligent and fun conversations I've had. Talking to people about math is awesome, I've learned so much. I've even had help in resolving disputes.
I've conversed with many people such as Hemachandran Hcn, Pranjal Jain, Trevor B, Krisnha Ar, Kalpok Guha, Sean Ty, Prasun Biswas, Rajat Bisht, Mardokay Mosazghi, Prasad Nikam, Anubhav Singh, and Shivmani Patil.
Here's a link to my Facebook so if you have one, send me a friend request and I'd love to chat about math, life, the weather or just about anything.