Bitter bitter bitter.
Everclear, ice, and anything bitter.
Like the really cheap grapefruit juice.
The stuff with no added sugar that comes in big cans.
Get a cup of ice, fill it with juice, and pour the Everclear on top.
Mix it up and start drinking.
It'll taste bad but you don't taste the alcohol.
Just the nasty, bitter juice.
Concentrated lime and lemon juice work well, too.
Get yourself your favorite flavor of Snapple, pour in some lemon and lime, and, of course, Everclear.
Make sure it is concentrated lemon and lime juice, though.