Yes. There are a few actions that, if you perform, can negatively impact your patent rights. The first action is selling your product or offering your product for sale. If you either sell the product that you would like to get a patent on or offer the product for sale to a potential customer, you start a clock running in the U.S. from the date of the sale or offer for sale. With an offer for sale, you don't even have to have a physical product - if you offer your product for sale by showing detailed drawings of how your product would be built or would work is enough to start the patent clock. You then have one year from that date to file a patent application with the USPTO. If you do not file a patent application on or before that one year deadline, you lose all rights in your invention in the U.S. This is known as the "on-sale bar".
The second action that can negatively affect patent rights is if you make your idea publicly available. For example, presenting your idea at a conference or in a poster, publishing your idea in a paper, or publishing your idea on a web site can affect your patent rights. Even telling someone your idea can make your idea publicly available. Like selling your product or offering your product for sale, publishing your idea starts a one year clock in the U.S. You then have to file a patent application within that year. If you don't, you lose all rights in your idea.
The third action that can negatively affect patent rights is if you use your product publicly (public use). For example, if you install your new gravel onto a road to make the road more resilient, this would start the clock running and you would have one year from this public use to file a patent application. There is, however, an exception to this rule. If your use is an experimental use, then the clock does not start. So, using the same example, if you are testing your gravel and are making changes to your gravel as cars go over the gravel over a period of time (and keeping records of these changes), then the clock would not start running because you are experimenting with your gravel and your invention has not been finalized. Once you stop experimenting, the clock would start.
Currently, the fourth action that can negatively affect your patent rights is if you "abandon" your invention. For example, if you start working on your invention and then stop pursuing it for a prolonged period of time (and have no valid reason (e.g., lack of funds) for stopping work on your invention), and later want to get a patent on your invention, and your work stoppage becomes known, you would lose your right to get a patent. You have to work diligently on your invention before filing your patent application. Once you file your patent application, you can discuss your product and/or sell your product freely.