I usually know what I'm looking for when I go into a store, then I ask the lady to put it on me or I try it on myself and if it looks good I buy it. Usually, my mom is with me and she has really good taste in makeup so we end up buying the same things.
If im in MAC, i *have *to try all the make up, the foundations the lipsticks lipglosses eye shadows eyeliner. basically cake my face and look like a clown. Then which ever i like i will get! :)
i hardly buy first time. i keep chking same samples 2-3 times b4 i actually buy them. sometimes i also chk reviews online b4 i go back n make final decision. So i'm among few who can always come out of Sephora empty handed. :) Mac i just went once didn't go again so far