You've probably seen a divemaster or buddy do it and thought: How do you blow a bubble ring underwater? It's not a critical safety skill — or really important scuba diving skill whatsoever — but it is fun, and could be a good way to pass the time on your next safety stop. Check out this video from Hugo Mattsson on how to make bubble rings, both by shooting them your hands and by blowing bubble rings with your mouth.

Mattson breaks his two techniques down with five easy steps each. Check out his tips for shooting air bubbles and try for yourself:

1. Get in a Vertical Position

If you're swimming in a horizontal trim, it's important to alter your orientation so you can manipulate your bubble stream.

2. Tilt and Breathe

This gets your bubbles moving upward so you can get things started.

3. Disperse Bubbles

Use a flat palm to knock the stream of bubble downward and in front of you.

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4. Press Your Knuckles Together

Make two closed fists and bring your knuckes together.

5. Use the Force

Quickly knock the stream of bubbles outward by quickly pushing your fists outward and to the sides.

Here are Mattsson's tips for blowing air bubbles:

1. Horizontal Position

Position yourself so you're facing the surface, as your air bubble will rise toward the surface.

2. Take a Deep Breath

Get your air supply ready, but remember not to hold your breath while scuba diving.

3. Remove Your Regulator

Make a point to securely hold your regulator while trying this so it's close at hand.

4. Stick Your Tongue Out and Extract

Quickly suck in your tongue so it forces the air out in the form of a bubble.

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5. Keep Tongue as Round as Possible

This will help you achieve the best results.

Happy bubble blowing!