Here on the forums, I don't hide my more emotional side at all. I suppose that's because here on the Internet I'm anonymous and therefore largely "safe" to be myself.
In real life, however, is a different story. By and large I allow a lot of my "Feeler"ness to show but only enough to still remain within acceptable boundaries what most men consider "normal". Everyone who really knows me knows that I'm very sensitive and very warm and that the stoic front I put on is largely just my public face. Who I am in private is much deeper than that.
I used to be a lot more open with who I was when I was younger but I was ostracized for it and the memories of the isolation and exclusion still sting to this day. Perhaps that makes me weak for feeling the need to hide a lot of who I am...but that's where I am right now. Maybe one day I'll get strong enough to let who I am out in the open completely.
One last thing: How I express myself depends on who I'm with. I've found the generally among most women and other feeler males I tend to come out of my shell easier than I do with T-males or extremely strong T-women.