I start Blue and after blue i do grump then i go wolfes and after i cleared wolf i go red between wolfes and red i alwas meditate as soon as possible. sometimes i invade there Red if i do i go After red to my own Blue and do grump if i got enough health then i can do Scuttle Crab for health regen then i go to my Red.

If you see that the ennemy is pushing you can always try to gank. you can always try to gank lvl 2. if you started at the enemy red and you are on blue side i can try to gank there top lane lvl 2.

You can always pick Master Yi in a lower elo. But remember that if you are against a hard cc enemy team you can't always basic attacks and then you are not getting your aplha strike back in time. so I recomment not to pick Master Yi against hard cc Champions.