How to Use Skype Without a Microphone. You can use Skype if you don't have a microphone or headset, but you can not do any voice chat. Instead, you can use Skype as an "instant messenger" (typing chat) to chat with friends and family from around the world. (You may still be able to hear them using Skype if you have computer speakers or regular earphones.) Instant messaging with Skype is free to use.
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Log in to Skype using your user name and password.
Right-click on the contact you wish to speak with.
Click "Start Chat." This will open an "Instant Messaging" window with the contact that you selected.
You can now chat with your contact using your keyboard. Type as usual and have fun chatting.