A few tips I have learn over months of playing dota. 1. Do not autoattack in your lane ever!!! Move around with your mouse and last hit/deny. When you're autoattacking, you're pushing the lane and getting closer to your enemy base, therefore giving your enemies a easier chance to gank your lane. 2. Item builds- Many new dota players buy the wrong items or get the wrong skills for their hero. Use dotastrategy.com/list_strategies.html to get free hero guides on every hero. 3. Coordinate with your teammates. Try to avoid arguments with your teammates as it will not help you win the game. 4. You should always have a scroll of tp with you as you can tp back to base or tower to defend it with your teammates. 5. When choosing your hero, take your allies' hero choice into considersation. For an example, if your teammates ardy picked 3 melee and 1 range. You should probably get a range.