Open TikTok and tap the plus button
Choose Photo mode if available
Select the picture from your gallery
Edit the photo if needed
Add text, stickers, or filters if desired
Tap Next
Write a caption if you want
Choose your privacy settings
Tap Post
To send a picture in a TikTok DM
Open the Inbox
Open the chat
Tap the photo or gallery icon if available
Select the picture
Tap Send