How to comment on a Google Doc or make suggested edits

Adding comments on Google Docs

Accessing and Commenting on Shared Documents in Google Drive

Edit and comment on shared Google Doc

Sharing Google Docs and Adding Comments A Complete Tutorial

Google Docs - Sharing So Others Can Comment

Making Notes / comments on a shared Word Document on Google docs

Sharing and Commenting on Google Docs

ワイルドリフトシーズンを最大限に楽しむ方法

Sharing Google Doc with Others, "Can Comment"

Sharing your google doc so that anyone with the link can comment

Sharing a Google Doc as Can Comment and adding Comments

Google Docs: Sharing Features (Comment/Edit/Read)

Googleドキュメントを共有する方法

Google Apps for Education: Adding comments within a shared document

Sharing Google Doc with suggestion rights

Collaborate on a Google Doc

Google Docs - Sharing and Commenting QuickStart

Sharing & Collaboration in Google Docs

How To Create and Share a Google Doc - Full Tutorial