Can we exchange some advice about how to best perform in solo queue, especially in lower ranks?

Personally I'm Gold 1 now and I'm still kind of afraid of solo queuing due to just how volatile it can be compared to playing with friends.

What are the do's and don'ts when playing with four people you don't know? What can and what shouldn't you expect?

How do you adjust your play to what your mates do, especially when the communication of the team is limited at best?