I have this problem too. :/ I laugh about it and I change the subject but when I get home I end up crying about whatever I held back. I cry a lot, though. Just not in front of people, and when I do I hide my face entirely. I tend to talk better when I'm not able to see the other person or when they're not able to see me. Some of my best problem solving ideas come from when I'm in the middle of a meltdown on the bed, blanket over my eyes and crying my eyes out. It's...weird.