She even posed for a photo with the 18-year-old star, but Ms McKay - who has had a boyfriend for two-and-a-half years - said the night ended there.Daniel Radcliffe gallery
"We said hello and had a quick chat and for the rest of the night, just because I was fascinated, we were sort of smiling and making eye contact," she said.
"I couldn`t believe when he said he was looking for the girl."
"He was looking at me a bit and I guess I was batting my eyelids back," Ms McKay, a trumpet player who has performed at the AFIs, told The Advertiser. "We did make a lot of eye contact with each other. David Campbell introduced us and I got to talk to him briefly."
Although she is committed to her current relationship, Ms McKay said she would be keen to organise a second audience with Radcliffe while she was in the UK.
"I`ve told my boyfriend about him and I`d be keen to meet up," she said.
The actor, who lamented his inability to get the mystery girl`s phone number on the night, has also not ruled out re-establishing contact.
"She stared at me the whole night and I was going to get her number and then I couldn`t find her," he said. "I must have walked around that party for an hour trying to look for this girl, like some sad pathetic dweeb."
While Radcliffe has amassed a $50 million fortune, he has been unlucky in love and has spoken of the problems associated with finding a girlfriend who wasn`t interested in his money.
But Ms McKay said she wasn`t looking to cash in on the actor`s public profile.
"I hope people don`t think I want my 15 minutes of fame or anything," she said.
"My Mum read (Radcliffe`s) comments in the paper and said, `I think he`s talking about you`."
However, a host of others were adamant they were the ones who had captured the Harry Potter star`s heart.
One caller, who identified herself as Kirstie, said she was convinced they had shared a special connection, while another wrote: "I just want Daniel to know his feelings are reciprocated."