"During these meetings, lab members talk about the current status of their projects." - are you sure that everyone is interested in everyone else's work? If that's not the case, these meetings are very annoying for people without an interest to a particular topic.
Actually, the entire thing is overrated and misevaluated. I understand that sometimes (quite often) researchers want to discuss their problems with other people. For instance, you want an advice from someone who's an expert in A and so you find such an expert and ask your questions on A. In doing so, you address two things: (1) you get quality feedback because that person is an expert, and (2) you make sure that the topic of your question (A) is interesting to that person.
Both of these things might not work if you're doing this via group meetings. There might be no experts in A among the attendants of the meeting, and also, people might be uninterested in what you're talking about, so it becomes a waste of time for both sides.
That was about presenting your work at group meetings for the purpose of learning. Another thing is when you use a group meeting to practice a talk. In doing so, one should realize that they are actually asking for a favor of giving feedback from everyone else, not blessing them with your infinite shiny knowledge. So the speaker is not supposed to await questions from the audience but conversely, ask the listeners whether this and that was clear, if something could be explained better and so on.
It's not easy to do, actually. When I started doing this, I got very little feedback because not everyone was understanding what did I want from them. Yet, after a few times I could see benefits for myself and my presentations.
Bottom line: rather often group meeting become a venue for "boasting" about your scientific results, and they really should not be. Ask yourself if this is really the case, and in case of doubts, discuss it with the other group members.