Start with either your bot laners or top laners leashing you red/blue.DO NOT USE YOUR SMITE PLS SAVE IT.Tf you started with red go raptors and smite the bigger onf and then deal with the smaller ones if blue was done go to wolfs and use your smite there then proceed to go to the other side of your junglew and clear th buff you havent done yet.After that get scutle in the river you are sitting in and you should be lvl 3 where lee sin hasa a power spike make sure to gank bot or top depending on your health and which scutle you went for.

PLs make the most of it and meke sure you get your jungle item as soon as possible this will unlock potentiall plays in places were you have a teamate laning.
Remember to have fun and it should flow

So this applies to all games of league but still if you are falling behind as lee sin will naturaly do as he is stronger in early game, make sure you are getting vision for your team to be able to set up for objectives such as drakes or baron.Try to dive for squishys with your Q but save your W to jump yo a teammate,ward ar minion to disengage if they chase use ur ult to kick them away or if your dive is succesful use ur ult kick the ad cary or support into your team to get an easy takedown.

Im not the greatest pkayer but i spent more time than usual on this mini guide so a vote would be apreciated Thanks guys and feel free to read any of my other average guides