How do I actually use a tufting gun?

Push the needle and foot of your gun into your fabric and apply significant pressure. I push my frame against a wall when I work as sometimes the pressure can cause my frame to shift backwards. If your pressure is not consistent, or too light then the yarn will not effectively pass through the fabric as you work, and may even push out towards the back of the fabric. This may cause all sorts of issues ranging from tears and yarn fallout, to inconsistant pile on your piece.

Rotate your machine with you, in the direction that you want to go. Using the handle of the machine to help prop up the machine, and take some of the load weight off your wrist. The foot of your machine must always be in front, guiding your work. Don't ever 'backtrack' or drag the tufting gun.