This usually happens when your organic reach is low, meaning the platform does not show your posts to many people on its own. It can come from quiet times on your page, fewer comments in the past, or content that does not get quick reactions. Boosting the post pushes it into more feeds, so the activity increases. You can try posting at times when your audience is usually online, or write captions that invite people to comment. Asking simple questions can help start a conversation. Little changes like clearer photos or relatable stories can also attract more attention without boosting. What do you think?