Try not to fight; just push waves, proxy, waste time, be annoying, and don't be afraid to die if you can waste their time and make them lose EXP and gold. When they leave the lane, just R and eat the turret. Always splitpush. You can ignore your team except if you're close to the area and you can turn the fight, but if you are weak, just splitpush. Your R CD is very low, so don't be afraid to use it. Have fun—don't let the enemy have fun. Win game, profit.

At the start of the game, go and start to poison the first three minions. Don't let the enemy touch the minions, but don't waste health—you will need it to proxy. When the second wave is close to the first tear tower, kill the three caster minions and try to fight the enemy and kill one more minion for level 2. If your elo is kinda low and the enemy is kinda dumb, you can kill them because of the level advantage. You get gold; they lose the wave, so it's very good.

When you come back to lane, try to figure out where the enemy jungler is. If he is bot side or just cleared top-side camps, wait for a neutral wave, kill it as fast as you can, and go to proxy behind the turret (btw, don't forget to go behind the second tear tower; it gives you a temp advantage, so you don't need Teleport to get back on time). From the start up until around level 7 you can execute, so you would get back faster. Don't forget to always use your map—play dumb but be smart. You need to mind-control your enemy so they wouldn't know what to do.

At late game, just waste their time and try to get one to two enemies to chase you on the side lane when your team wants to take an objective. You play like a normal split pusher, but you are "speed" and a "cockroach." Try to predict and learn how to dodge their abilities, because with your speed it is very simple. If you are low health, try to bait enemies to chase you. Their time is more worth than your time.

Singed laughed madly, trail of poison behind—none could catch what shouldn't be chased. (Yay 3000 characters)