Three seconds all it takes!, U dont even need to talk if they know what tht mean and if they're interested too watakufata wenyewee!., you see someone you're attracted to, give them a 3 sec firm eye contact and then look away, they'll be curious to know what's going on/wht happened, next step will be on them if they're attracted to you too, they'll try to get in contact with you......(talking through experience hapa....and believe me, it worked!)