In Contacts, choose Card > Go to My Card, and then click the Edit button at the bottom of it. Checkboxes appear next to the items you’ve filled out, enabling you to choose which are included when you share your contact details via email, AirDrop or the other methods available from the Action button. Sadly, this ability isn’t available for other contact cards, so you can’t quickly choose which details to provide about, say, someone from your team at work or an activity group in which you participate. If you need to disconnect from a Wi-Fi network (if you’re in a public hotspot for instance), but want to keep Wi-Fi turned on to use AirDrop, å- click the Wi-Fi status icon. You will now find an option to disconnect from the current network.