Every time I try to use liquid liner I end up with a shadow line on my eyelids where it has transferred. Even if I keep my eyes closed for a couple of minutes for it to dry it still happens! I've tried using gel liner with a brush because I thought that would be drier than a liquid but it still happened and looks so stupid 
I've googled videos of how to apply it and can't see what I'm doing wrong. Is it just because I have saggy eyelids? 