I need to work on a poker face. This is how I envision it: a somewhat blank, yet pleasant expression at all times. As difficult as it will be, if I must speak out in a group setting, I will soften my tone or speak in a lilting manner so that I will not be misunderstood or people will not feel I am either "argumentative" or "confrontational" [as feedback suggests]
Count to ten before speaking.
Detach myself from situations that will escalate my personal feelings.