Miley Cyrus and Liam Hemsworth. (WENN.COM)

Miley Cyrus realized she was besotted with new boyfriend Liam Hemsworth when she found herself playing hard to get as they first started dating.

The couple met on the set of their new movie The Last Song, and romance blossomed while they were filming in Georgia.

Cyrus recently confirmed the relationship, and has now opened up about their early courtship - revealing she tried to "play it cool" with the Australian actor in the beginning.

She says, "I think when you're trying to play it cool and you're like, 'Oh, I won't text back for like the next hour,' that's when you know it's more serious. You have no idea how many times I was like, 'Oh he called. I'm not going to call back tomorrow.' When it gets confusing and you're over-thinking it, you must really like someone."

Cyrus also admits she was worried about introducing Hemsworth to her parents - because her family life is so hectic.

She adds, "My parents are a little loco (crazy). We have five (kids) and my mom and my dad and my grandma plus like my 10,000 dogs - so if you love me after you see my lifestyle then you're good. You're a keeper."