How to share a picture to Facebook using the Facebook app for Android

1.    Launch the Facebook app from the Home screen or the app drawer.
2.    Log in to Facebook if you're not already logged in.
3.    Tap Photo.

4.    Tap Allow if your phone prompts you to allow Facebook access to your photos.
5.    Tap one or more photos you'd like to share.
6.    Tap Done when you're satisfied with the photo(s) you'd like to share.

7.    Tap Public or Friends to choose who to share the photo(s) with.
8.    Type or add any information you find pertinent: your location, tagged friends, emoticons.
9.    Tap Post.

How to share a picture to Facebook from your Android photo gallery

1.    Launch the Photos app from your Home screen or the app drawer.
2.    Tap a photo you'd like to share to Facebook.
3.    Tap the Share button. It looks like < with a dot at each point.

4.    Tap the Facebook button.
5.    Type or add any information you find pertinent: tag friends, add location, add feelings.
6.    Tap Post.

How to share a picture to Facebook using the mobile web page

1.    Launch your browser from the Home screen or app drawer and go to Facebook.com.
2.    Log in to Facebook if you're not already logged in.
3.    Tap Add Photos.
4.    Tap the Plus button.

5.    Tap Allow if your phone prompts you to allow Chrome to take pictures and record video.
6.    Tap Documents for existing photos, or Camera to take a new photo.
7.    Tap the photo you'd like to share or take a new photo. You can add more than one photo by tapping the Plus button again.

8.    Tap Preview.
9.    Type or add any information you desire: location, feelings, or friend tags.
10.    Tap Post.