Laning
The purpose of laning is to get experience from enemy creeps dying, and gold from getting creep last hits. With the experience you gain levels and with the gold you gain better items. Generally if all things are equal(picks, skill, etc.), whichever team has a level and gold advantage will win the game if they continue the trend. If you play right(perfect teamwork) against another perfect teamwork team, the little things matter.
To improve your experience and gold advantage over your opponent, your best option is to KILL THEM. When you KILL THEM you gain about 250 gold and usually about a level’s worth of experience. Anyone who supported you in that kill also gets some support gold even though they didn’t land the final blow.
Your second best option is to ALMOST KILL THEM and make them go back to base to heal. If they go back to heal, they spend 20-40 seconds walking slowly all the way back to base. This is .5-1 levels worth of experience they are missing out on, and they also miss all chances of last hits and denies.
To reduce the effect of ALMOST BEING KILLED you should purchase a tp scroll from base and make the trip back shorter. Yes, it is worth the 135 gold. This is hard for noobs to get over, but that is simply 3 last hits and you are even again. That’s 3 last hits and a lot of creep exp that you would spend time walking back and forth. Simply put, ALWAYS BUY A TP SCROLL AND USE IT WHEN GOING SOMEWHERE LONG RANGE. The noobs that are ALWAYS under leveled spend a lot of time walking back and forth to base to heal. I don’t care if you are only 250 gold from getting boots. Buy a tp scroll. Also, ALWAYS CARRY A TP SCROLL AT ALL TIMES IN CASE YOU NEED TO GET SOMEWHERE NOW.
The final most important thing you can learn about laning, is PLEASE FOR THE LOVE OF GOD DO NOT AUTOATTACK THE CREEPS. There is a place where the creeps meet and beat on each other until they die. This is called the creep line. The creeps do a very exact amount of damage. Generally, if two waves of creeps fight endlessly on flat ground, THE CREEP LINE WILL NOT MOVE. If you start auto attacking or nuking the creeps, the creep line will be pushed closer to the enemy’s tower. When they enemy is closer to their tower, they are closer to being safe. It is so much more difficult to gank heroes when you can’t sneak behind them before initiating the gank. For this reason, DON’T AUTOATTACK THE CREEPS. Instead of auto attacking, right click all over the ground, run in circles until you are ready to last hit, spam the S key(stop) to animation cancel your hero(BEFORE he throws his attack). Just don’t auto attack.