Definition
To act 'taciturnly' means to do something in a reserved and quiet manner, often speaking very little. It implies a habitual disinclination to conversation. Think of someone who is naturally quiet and doesn't express much verbally—they are taciturn. It suggests a deliberate choice to minimize communication. It can also indicate a reluctance to share thoughts or feelings. This behavior contrasts with being chatty or talkative. In short, it's a low-key, non-vocal way of going about things.