Fake eyelashes are amazing!!! As a colorguard member of 6 years I had TONS of experience with them. Sephora/M-A-C eyelashes are best for Proms/Weddings but for just an evening out, the drugstore ones should suffice. Try getting the black glue so that you won't get that crusty white mess from the regular glue.
Also, I prefer to use the full lashes since my eyes are HUGE it would take a lifetime to apply the individual ones. However, if the opposite is true for you, individuals are easier to apply on a smaller eye.
Look for lashes that look natural, not razor cut at the ends but more like different lengths so that they blend into your natural lash line better.
Also when applying make absolutely sure you attach the false ones as close to your lash line as humanly possible. Even being above your natural lash line by a millimeter will look ridiculous so just get as close as possible.
As someone mentioned, be sure to add mascara and curl your natural lashes prior to applying the false ones.
Finally, after the glue has dried, I like to add a thin line of liquid eyeliner over the false lash line to help blend it in better and hide any excess glue.
Sorry if I confused you, but make-up is my forté.