How do you move the story along?

As a Player - how do you move a story along? My group often sits, chatting ever so vaguely in character. I love that, often. However, I think dnd relies on challenges resolved by dice rolls.

I feel like I have to prod the DM to get on with the story, so we can get on with adversarial chances. IE Theres no reason to have a trap that hurts someone 50% if the party can immediately camp with no negatives. Especially if it eats up a loogie of irl time. Its just narratively uninstersting.

I don't want to be a prominent irl person in the group. But if I don't overwhelmingly ask leading questions to the dm, and usually repeat them, the party doesn't go anywhere.

We're only doing an encounter, maybe two, per 2.5-3 hours. And most nights the dm says they had more planned more but we didn't get there in time. But I was sitting in a lot of free time wondering how to get to the planned content. I'm not sure the most productive way to talk about my frustrations in this way.

Do you have tricks, strategies or narrative solutions to help smooth through transitions? Or signal taht we're ready to move forth?