The two teamwork skills needed for effective communication from the options provided are:
Option B: Reserve judgement.
This skill encourages open-mindedness and allows team members to express their thoughts without fear of being judged, which fosters a more collaborative environment.
Option D: Be aware of body language.
Being mindful of body language helps team members understand non-verbal cues and can enhance communication by ensuring that messages are conveyed clearly and effectively.
So, the correct choices are B and D.