If the personal chat is opened via PC, then the chat window gets transferred to your phone as well.
How you can chat with yourself on WhatsApp
Step 1: Open a browser on your phone or computer
Step 2: Enter “wa.me//” in the address bar followed by your phone number, including the country code. So the address will look like ‘wa.me//91xxxxxxxxxx’ for a person from India
Step 3: A new window will appear on the screen, asking you to open WhatsApp
Step 4: In case you are on the phone, your WhatsApp will open up. The profile will have your phone number alongside your profile picture
Step 5: If you are on the computer or laptop, then a new window will open up and you can select the option of ‘Continue to Chat’
Step 6: Once you click on the option, WhatsApp Web or the WhatsApp desktop app will open up with your personal chat window
Step 7: Now you can easily chat with yourself where you will be able add notes, save photos and bookmark important links
It is important to note here that if the personal chat is opened via PC, then the chat window gets transferred to your phone as well.