Use a Two-Pass Icebreaker
In the first pass, ask everyone to give a short answer with no explanation. This gives the group a quick view of the room and keeps the opening round moving.
In the second pass, invite each person to explain one detail or ask another participant one follow-up question. Make the second pass optional so people can keep a comfortable boundary.
Choose the starting prompt from the fun icebreaker questions collection. Use one clear question for both passes instead of changing topics midway.