Problem: Article: It's a blue app icon with a white f.  Log in, if you're not signed in automatically. You may not be able to tag some people or businesses due to their privacy settings. To do so:  Tap an image in one of your photo albums, on your Timeline, or on another's Timeline. Tap the icon shaped like a shopping tag at the top of the screen. Tap anywhere on the photo. Usually, tags of people appearing in a photo are placed on top of their image, but you can tap anywhere you like. Start typing the name of a person. Tap the name of the person you want to tag when it appears in the dialog box. Doing so tags them in the picture. Tap X in the upper-left when you're finished. Your friend will receive a notification that you tagged them in a picture. To do so:  Start a new post by tapping the status update prompt at the top of your Newsfeed or Timeline. It will read "What's on your mind...?", "Would you like to share an update...?", or something similar. Tap Tag People. It's next to a blue silhouette near the bottom of the screen. If you don't see this option, tap Add to your post below the message prompt to open the menu of options. Tap Who are you with? at the top of the screen. Alternatively, tap someone who appears in the "SUGGESTIONS" list on the screen. Start typing the name of a person. Tap the name of the person you want to tag when it appears on the screen. Type other people's names and tap them if you want to tag more than one person. Tap Done in the upper-right when you're finished. On Android, the button may be labeled Next. Write a comment and tap Post in the upper-right corner. Your post will appear on your Timeline, and the other user will receive a notification that you tagged them in a post. To do so:  Begin a post or a comment on another post, photo, or video. Start typing a someone's name anywhere in the post or comment. Facebook will make suggestions as you type. Alternatively, type @ before typing a name. This lets Facebook know that you want to tag someone in your post or comment. Tap the name of the user you want to tag when it appears. Tap Post in the upper-right. Your post or comment will be posted, and the other user will receive a notification that you tagged them in a post.
Summary: Open the Facebook app. Tag someone in a picture. Tag someone in a post. Tag someone by typing their name.

Problem: Article: Launching the app, have a go at tennis’ best players by tapping on "World Domination." Swipe left and right to browse through all 32 possible opponents.  All opponents have varying levels of difficulty ranging from 1 to 16. Pete Sampras is the hardest one to beat. Choose an opponent by tapping on "Play." Start with Level 1, and move your way up. Winning a match will give you 1 star. Winning a match on straight sets will give you 2 stars. Winning a match on all games will give you 3 stars. Aim to get 3 stars on all 16 opponents. It’s not as easy as it sounds.  Continue playing and try to win against each of the 32 players. Once you win and dominate a player, go up another level until you beat all of them. Continue playing and beating your personal best.
Summary: Select the "World Domination" option. Choose an opponent. Dominate. Play the game. Challenge yourself.

Problem: Article: Once the stain has been saturated, there are a few different cleaners you can use to remove the blood from the couch. Here are some of the most popular blood cleaners for couches:  One part baking soda mixed with two parts water Fresh lemon juice mixed with a pinch of salt Hydrogen peroxide Rubbing alcohol (safe for S-only couches) One cup (235 ml) of cold water mixed with 2 teaspoons (10 ml) dishwashing liquid Hairspray Mix your cleaning solution in a bowl. Soak a clean cloth in the solution, and wring out the excess liquid. Blot the stained area with the cloth to saturate the stain with cleaner. Don’t rub the stain, as this could push the stain deeper into the material. Don’t be alarmed if the hydrogen peroxide starts to bubble and foam. That just means it’s killing bacteria. Use a fresh, dry cloth to blot the area and absorb excess cleaner and moistened blood. Continue dabbing a fresh area of cloth into the couch until the cloth comes away clean and dry. Continue alternating between dampening the area with cleaner and blotting it dry with a fresh cloth. Keep doing this until no more blood comes off on the dry cloth, and the stain is gone. For a blood stain that doesn’t want to come out, you may have to try a commercial upholstery cleaner. Saturate a clean cloth with the cleaner and blot the stain with the cloth. Then, blot the area with a dry cloth to remove blood and cleaner. Look for an enzyme-based cleaner that’s safe for use on couches. These types of cleaners are specifically designed to break down proteins in organic stains like blood. To rinse out excess cleaner from the couch, soak a clean cloth with cold water. Wring out the excess, and blot the couch to saturate the area with water. Switch to a dry cloth and blot the area to remove as much of the water and excess cleaner as possible. Let the area dry completely. To speed up drying, aim a fan at the wet spot. If you're working with an S-code couch, skip the rinsing step to prevent damaging the couch, and just blot the area with a dry cloth.
Summary:
Choose a cleaning solution. Blot the area with cleaner. Blot the area with a clean cloth. Repeat until the stain is gone. Tackle tough stains with upholstery cleaner. Rinse and dry the area.