FoxNews.Com - LOS ANGELES —  Zac Efron and Vanessa Hudgens are pretty coy about their personal relationship in the public eye, but the Disney duo went all-out in “High School Musical 3″ — and seeing their onscreen chemistry gave co-star Ashley Tisdale a heart-warming buzz.

“I’m a total romantic, I loved watching romantic comedies growing up like ‘My Best Friend’s Wedding’ and so obviously, like, I just love watching Zac and Vanessa because it is such a sweet and romantic relationship so of course you’re like, ‘aww’ whenever they kiss and everything,” Tisdale gushed to Tarts. “But just watching them on set is really awesome, it’s beautiful.”

But sadly, Efron says he isn’t as sweet as his character Troy Bolton in real life — although he did have some tips for the young men out there.

“I can’t say that I’ve ever did anything quite so Romeo and Juliet,” Zac admitted. “But it’s the small things. Guys remember, it’s the small things you do.”