I like a gloss that lasts at least four hours. I don’t mind if it’s sticky–I find my hair is just as easily caught in non-sticky gloss as it is sticky gloss. I prefer non-scented over scented, though I’m not really bothered by most scents. I gravitate towards more opaque colors with subtle shimmer.
For me, it’s a lot of trial and error. I love coral and peach blushes with blues, greens, and teals–as well as pinks and golds, depending on the overall look. Browns and neutrals go well with most blushes, and if you have a very light eye and lip, a heavier, darker cheek works nicely. I love beige, brown, and nude shades to pair with neutral and smoky looks. Cooler-toned blushes like plums and cotton candy pinks work better for me when I pair them with a cooler-toned lip (and tend to coordinate with gray, pink, and plum eyeshadows).
One – practice before a major event! Some totally get the hang of false eyelashes right off the bat, but others (like me!) take much longer, so it is important to give yourself some time for error prior to really needing them. Second, cutting them in halves or thirds can be a good way to apply slowly and methodically.