If you’re new to TikTok, the app is a great way to make and share short videos with friends. To sign in, first open the app and sign in with your Facebook or Google account. If you don’t have an account yet, you can create one free at tiktok.com. Once you’re signed in, tap the three lines in the top left corner of the screen and select “Sign In.” Enter your password and tap “Sign In Again.” You should now see a list of your accounts on TikTok: Facebook, Google+, and TikTok (if you created one). Tap “Sign In With Facebook” or “Sign In With Google+” to sign into those accounts. If you want to use your TikTok account instead, tap “TikTok” at the top of the screen. Next, enter your username (which is usually just your first name) and password (which is usually just your last name). If you forgot your password, go to tiktok.com/forgotpassword and enter your email address so we can send you a new one. Finally, tap “Log In” to finish signing in! ..