Field tested and approved:

"What is that you are drinking?"
"Blah blah blah"
"Now, I don't always drink beer, but when I do, I prefer Dos Equis"
*tip your bottle
"Stay thirsty my friends"
*walk away

If you can pull off the mannerisms and accent, you're in. Also, even if you don't open with this, many of the lines from the commercials are pretty C/F if you can find an appropriate point in the conversation to use them:

"I live vicariously.... through myself"
"I've never lost a sock"
"I've been known to cure narcolepsy, just by walking into a room"
"I'm a lover not a fighter, but I'm also a fighter, so don't get any ideas"
"Police often question me, but only because they find me interesting"
"If I disagree with you, it's because you're wrong"

And if your set doesn't open like you had hoped, just tell them "I've never had an awkward moment, I had that one just to see how it feels"

STAY THIRSTY MY FRIENDS