To effectively participate in a group discussion, balance must be maintained between speaking and listeningspeaking and thinkinglaughing and listeningwatching and listening.

The answer would be Speaking and Listening!
Please mark as brainliest answer!

To effectively participate in a group discussion, balance must be maintained between speaking and listening. 

Speaking and listening play a major role in discussion. Being involved in discussion is the act or process of exchanging ideas. Knowing this, we can easily deduct that speaking and listening is the correct answer since we're talking about an exchange of words and notions.