Geofilters are a fun way to share where you are, or what you’re up to, by adding an overlay to your Snap.If you have location services and filters enabled, you will be able to add a geofilter.
You can also highlight your text and then change its colour (each word can have its own colour too).
Under Settings, you can choose to let anyone send you messages (if they have your username) -- or you can limit it to someone you mutually follow.
You can also decide if you want your "Snapchat Story" to be visible to anyone who adds you.
You may see geolocation filters, which are, you guessed it, based on your location.
There are also filters for time, temperature, speed while traveling in a vehicle, and more.
Or, you can add the snap to your "Snapchat Story" in order to broadcast it to select friends or the public.