Think about some sort of activity that you do every day and come up with a table to record it. For example, you could create a table that measures activities associated with brushing your teeth. The table could include day of the week, time spent brushing, number of strokes of the brush taken horizontally, vertically, circular motions, if you used a dental stick or floss. You might want to come up with a table that records observations of something you see every day, like your pet behaviours, or the types of interactions people have in a coffee shop.
Show your table to a friend or family member. Try explaining the table to them and see what they say. You could compare this method of describing the data you have collected, with another method. For example, you could just describe what you have recorded without showing them the table and see if there is any difference in the way they respond.