Liam Hemsworth headed to a personal training session today, and the actor must not have wanted to talk about his reported broken engagement with Miley Cyrus, because he opted to grunt and make obnoxious noises when our photographer questioned him about the split!

The Aussie hunk has been working out nonstop lately! Just yesterday, the Hunger Games star headed to a local gym to pump some iron, so either he's working off some relationship stress or getting his bod in tip top shape now that he's single and ready to mingle!

Check out the full video to hear Liam's bizarre reaction...