ok so im going to start my build guide. there are a few ways to play twitch. I usually play in the middle, which is why i dont grab ambush right away. This helps you get those lvls faster. I try not to leave my lane until at least lvl 5. this will keep the enemy on his toes since you havent gone stealth yet (he/she might also think you are a noob) since stealth is what makes twitch soo annoying in games. Now that you have reached lvl 5/6 you can make your enemy guess wether you are coming back into the middle or have gone elsewhere. You can either pop back up in middle and shoot down you enemy to make him/her back up or potentially kill him/her or sneak to top or bot to help them with a gank. My main goal with twitch when playing besides total devistation when u ambush some unexpecting ppl in a lane that you werent in before, is to always keep your enemies guessing where you are going to pop up next.
i will add some more in-depth info towards my build within the next few days, as far as why i pick the items i have shown and maybe some ganking strats. Ive been sorta busy with my new job so i will get back to it as soon as possible.