Dealing with Bible studies or Growth Group studies where people are reticent about sharing their answers can seem awkward.
This article on GoThereFor provides some encouragement and practical strategies to encourage the sort of participation through which the group will help each other learn from God’s word.
This paragraph is about ‘developing a good pause tolerance’.

As you get into more questions, work hard at developing a good pause tolerance. By this I mean the ability to withstand silence. Ask your question clearly and with confidence and then pause. Count to fifteen slowly in your head and commit to not speaking. Look calm, smile, and make eye contact briefly with people around the room. If it helps, visualize the petals of a flower slowly unfolding, as an illustration of peoples’ thought processes at work. If someone speaks, respond with as much positive affirmation as you can. If your silence count reaches fifteen (or longer), invite one of your more confident members to share what they think. Encourage them that whatever they say will likely be helpful. Your coleader might break the silence once or twice during the study, but doing so more often will signal to group members that if they wait long enough the coleader will provide the correct answer. Both of you need to learn to wait—it will make a huge difference in leading a quiet group.

Read the rest of Richard Sweatman’s article at GoThereFor