Final answer:
Positive non-verbal communication includes smiling and open body language, which convey joy and openness, respectively, and eye contact, signaling engagement and confidence.
Step-by-step explanation:
Positive non-verbal communication signals can significantly enhance interpersonal interactions. Two examples of such positive signals include smiling and the use of open body language. Smiling is a nearly universal gesture that often represents joy and receptiveness, and it tends to make social interactions more pleasant. Open body language, such as uncrossed arms and a relaxed stance, conveys an attitude of openness, interest, and willingness to engage, providing a warm and inviting atmosphere to communicative exchanges.
Another essential aspect of non-verbal communication is eye contact, which can signal attention, respect, and confidence. It helps in establishing rapport and showing that one is actively participating in the conversation. However, it's important to note cultural differences in interpreting non-verbal cues, as what may be considered positive in one culture could be negative in another.