Apply a small amount of rubber cement to a small area of the carbon ribbon (just for one finger).

You do not have to apply the adhesive on a large length of the tape. You will be easier to stick a small portion of the tape, one finger after another, step by step.

Fast smudge the adhesive evenly over the surface of the tape. There is no need to wet the entire tape through, enough to moisten only the top layer. The less the glue, the softer get your glove.

Wait a few seconds until the glue dries and the surface will be similar to adhesive tape.
Put that portion of the tape to the glove, according to your idea of the location of the tape on the glove. Press it hard for a few seconds. Perhaps you would prefer to do this work with an assistant.

I recommend a little bend your fingers when you're sticking tape on the back of your hand.
Apply rubber cement to the next portion of the carbon tape and stick the tape to the next finger.

Proceed finger by finger and stick the whole carbon tape to the end.

Look at the drawing and an equivalent circuit of the connection.
As you can see, the tape is connected in parallel 2x2 feet.

I used a voltage of 7.4 volts. One glove consumes 1.3 amps (about 10 watts) and heated up to 50 Celsius degrees.

Button glued thermal adhesive on the back of your hand and you can power up a glove as soon as it gets cold.

Each glove consumes almost 10 watts. This is a very good emount of power, which will allow you to feel comfortable even in the dead of winter. But so you do not become hot recommend to use the thermostat on each glove. Thermostats are different temperature and you can always select the desired temp. It will automatically switch off the heating as soon as the temperature reaches the limit. You should place it under the carbon tape.
You might also be useful to have an LED power on indicator.

In this figure wiring diagram with thermostat and LED.

On the left glove extended connection, simplified connection on the right.
Choose your option and do as you need.

Heated gloves ready.

They are very thin and soft, and you can easily insert it into your winter gloves inside.

I stuck Velcro on gloves to secure the batteries holders.

At full power batteries will last for more than two hours!