Cold? 50 degrees, huh? My eyes tear up in the morning too. I've never worried about someone thinking I was crying. If it bothers you, maybe the solution is get some ski goggles. They should offer good protection, keep the wind off, and allow enough ventilation to keep the lenses from fogging up. Now, I'm not going to go that route because it's not something I'm concerned with. I would actually be more concerned with what people would think of me wearing ski goggle in 50 degree weather. If I were going to go that route, I'd just go ahead and walk around town with a football helmet on too. Now that I think about it... all that really would make me cry... so I guess there is no solution.