If you aren’t already logged into Snapchat, tap Log In and enter your username (or email address) and password.

If the switch is green, filters are already enabled.

If your camera isn’t already facing you, tap the camera icon in the top right corner of your screen. If you’re applying the face filter to yourself or a friend, tap on the face to which you want to apply the filter.

Some effects will change your voice if you speak with them enabled. These effects will briefly display “Voice Changer” on the screen when selected.

For example, using the black and white filter can add some nostalgia to the video. You can usually swipe the screen left to quickly access the color filters.

If your town doesn’t have a geofilter yet, you can create and submit one yourself.

You can’t combine two filters that both have text in the center, such as the time and the speed filters.