well you need good map awareness...sorta
you just need to keep an eye on their mid laner
you also need to know the enemy champions
if the top laner or their jungler has pretty good cc, you might not want to pick singe or proxy farm...
if they have TF or rek sai... you might not wanna proxy farm
if they have teemo who may shroom up the fking place... you might not wanna proxy farm
if they have a capable udyr that CAN chase and stun you... you might not wanna proxy farm
if they have a buncha teleports... you might not wanna proxy farm
singe revolves around doig stupid shit and getting away with it
beingg stupid is easy but you have to get away...some champs and summoners are so good at stopping you from getting away
99.8% of the time... the top laner and the jungler will come from BEHIND you when they wanna stop you
instead of muscling your way past em and back to ru turret
develop escape routes TOWARD their base... do some fancy ass loops n jukes n shit and get the fk outa there ;l
fling em over walls, yes that works, fling em into ur nasty puddle and root them
wutever it takes