Indicators?

whenever im interested in a girl and want to let her know, its diffrent for diff. situtations. if i just met you say in school or someting i would look you in the eyes untill you looked up at me and i would keep eye contact for a few seconds... they usually know that you like em when i do that as far as i know... though its been a long long long long time ive been able to flirt/pick up girls since i just got out of a long relationship. ya its a stupid dorky way of getting attention but whatever