You can collaborate with others on Google Docs, Sheets, Slides, and Vids to:
- Add, edit, reply, filter, or delete comments
- Assign tasks and action items
- Add emoji reactions
Important: On your Android phone or tablet, when you use a web browser to access Google Vids:
- You can watch processed videos.
- You can’t edit or add comments to videos.
Comment options
View all commentsAfter you tap a specific comment, you can:
- Edit a comment: Tap More Edit . Make your changes, then tap Save. 
- Reply to a comment: At the bottom, tap Add a reply.
- Resolve a comment: Above the comment, tap Resolve.
- Move between comments: Swipe left or right.
- Delete comment: Tap More Delete. 
- Return to editing view: Tap Close . 
To make your comment visible to someone, you can add them to the comment. They will receive an email notification with your comment.
Tip: If someone has set their status to “Out of office” and you have permission to view their calendar, you will get a notification in the comment as you add them.
If someone suggests an edit to a document you own, you can accept or reject it. This is only available in Google Docs.
- On your Android phone or tablet, open a document in the Google Docs app.
- To see the suggestion, tap Suggestion.
- Tap Accept or Reject.
Tip: If you decide later you don't like a suggestion you accepted, tap Undo.
To add comments to Microsoft Office files in the Google Docs app, change the file to a Google Docs file.
Use & follow up on action items
Use comments to assign tasks or action items with your work or school account.
Assign an action item in a comment- On your Android phone or tablet, open a file in the Google Docs, Sheets, or Slides app.
- Highlight the text, images, cells, or slides you want to comment on.
- To add a comment, tap More Add Comment. 
- Type your comment.
- To the left of your comment, tap @ and enter in the person’s name or email address.
- Tap the box next to "Assign to [name]" Assign. 
Tip: If someone has set their status to “Out of office” and you have permission to view their calendar, you get a notification in the comment as you assign it to them.
Tip: If someone has set their status to “Out of office” and you have permission to view their calendar, you get a notification in the comment as you assign it to them.
- On your Android phone or tablet, open the Google Docs, Sheets, or Slides app.
- At the top-right, tap the number.
    - If you don’t see a number, you don’t have any follow ups for that document.
 
- You can see the number of open:
    - Action items
- Suggestions
 
- To go to the first action item or suggestion, tap an option from the list.
- To close the menu, tap the number.
Use emoji reactions in Google Docs
With comment or edit permissions, you can add emoji reactions to comments across Docs, Sheets, and Slides, or react directly to content within Docs with emojis.
Add emoji reactions- On your Android phone or tablet, open a file in the Google Docs app.
- Select the text you want to react to.
- Tap More Add emoji reaction. 
- Choose which emoji you want to add.
Tip: On an Android phone or tablet, emoji reactions appear with other comments. You can also add multiple emoji to the same text.
- On your Android phone or tablet, open a file in the Google Docs app.
- In the top-right corner of the comment, tap Mark done.