1) Work on positive delivery of a message.
Scenario:
Mundo Jungle forgetting smite, appears to be new to the jungle and dies to the jungle camps. He also rushes Frozen Mallet like how Mundo pleases. You also know that a Sunfire cape is good for him. These are a few ways you can deliver the message:
a. Mundo, get a sunfire cape
b. Mundo, why haven't you gotten a sunfire cape yet?
c. Mundo, you might want to get a sunfire cape, it'll help you clear the jungle much easier & help tank the enemies as well.
One is a neutral order, one has a snarky sarcastic tone to it, one gives explanation why its good. They all mean the same thing; "GET THAT BLOODY SUNFIRE", but they aren't read the same.
2) Cut off team's negative chat and admit to your own mistakes.
Scenario:
The team is behind, and spot a mid roam going to the bot lane. Support & jungle wants to go in on the mid (seeing they have alot of CC) but the ADC pings the support to back away. The enemy mid laner gets CCed but the ADC wasn't there to collapse and do damage. Very quickly, the enemy jungler and bot lane joins the fight and the team looses a 4v3, loosing 3 members and gaining 0.
ADC: I told you guys to back off!!
Jungler: STFU, I don't want to hear it from you. You are 1/7
ADC: You have to trust me!!
Support: Actually, that was a bad call. He's 1/7, meaning he can't return damage
Jungler: But you went in!!
Support: yea, I did and I admit that was a bad call. I'm going to learn from that and not make that call next time.
Yes, I was the crappy support wanting to go in. I still think we would have picked off the mid laner and backed out in time if we went 3v1 on him, but heck with it. Team Morale is more important than who is right here, its just solo queue.