filling sup? please note these things

it's good to ward the river or tri bush yes, but be careful that if you leave your adc you might be putting them in a vulnerable spot

it's ok sometimes to just let them farm and not really fight the opponent, but make sure you are close to them so that you represent the threat of your abilities

edit: I realize now that my wording is kind of poor. but I'm not trying to say "omg why do people suck" I honestly accept that sometimes my support is not a sup main, and I'm ok with this, I play around it. I'm just trying to point out two things that I can't really play around, because I'm interested in having small parts of the game that I can improve upon being visible, and expect other people to like the same thing. and these two things are something I see a lot, are things that sometimes get me dead. more often do I make a mistake that gets me dead, like sometimes when I'm farming I forget to note that my allied minions die and leave me vulnerable and fail to adjust for this. I also haven't figured out how to handle a wave that's pushing towards me, like some times I just last hit and my opponent just last hits and the wave pushes slowly, but sometimes the wave hard pushes and all of a sudden there are 10 enemy creeps and 3 allie creeps and the adc starts auto'ing me and if I fight back the minion wave kills me, and I don't notice the difference between these two wave changes, at first they look the same as far as I know to see.