Proper nouns sometimes share the spelling as common words in the English language, with the only distinguishing factor being an uppercase letter. For example, "Sandy" is someone's name while "sandy" is an adjective you could use to describe a beach scene. For clarity purposes, you may want to capitalize proper nouns in any written format, including text messages. There are several ways to type capital letters in text messages. Depending on what type of cell phone you have, the exact process for capitalizing letters in a text message may vary by model.
Open a new text message. The first letter you type in any text message will automatically be capitalized. Every time you insert a period in your text message, the letter immediately following the period will also automatically be capitalized.
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Hold the key for each letter you want to capitalize for at least three seconds before releasing.
Continue holding down each letter for at least three seconds, if you need to use Caps Locks in your message.
Other Cell Phones
Start or reply to a text message.
Look for and select the "Abc" option from your alphabet, numbers and symbols menu. In lieu of a "Shift" key, this is an alternate option non smartphones have which allows you to capitalize one single letter. The exact location for this option may vary, but generally, you can access it by clicking on the left hand soft key.
Select the "ABC" option – instead of the "Abc" option – to activate Caps Lock in your message. You can release the Caps Lock by going back to the menu and selecting the "Abc" option.