What is a socially acceptable way of getting people interested in Signal? I installed it and use it for messaging (Ive never been able to actually receive an mms with it). But I have not one contact on signal, so it's not doing much for me at this point. My daily work contacts don't seem like a prime target user base.
You're going to have a hard time convincing non-technical
people / people who don't acutely care about privacy to use it in my experience. I generally try to shift people who are not in these demographics over to WhatsApp as that has a large user base and implements the signal protocol for end to end encryption. It's not a "safe" as signal but it's far better than something like messenger.