An explanation of "drawing tags", a message that appears when the light gauge is filled.

Drawing Tags Explained

When you fill the light gauge in the top-left corner of the screen, a message will appear that says "Drawing Tags". Then, a slot machine will appear to the right of the light gauge. It will choose 1 to 5 tags at random. If one or more of the randomly selected tags matches a tag that you or your dive buddies have used to tag things on the map, you get bonus points.

How to Get Bonus Points from Drawing Tags

Try using many different tags to tag things on the map. The more tags you use, the more likely you are to get a match when drawing tags. You also get more bonus points if the randomly chosen tag or tags have been used multiple times on the map.