 very similar to presenting a picture with activities to students and having them report what the people are doing at the present time using the present continuous tense. What we'll do here is have the students do the same thing, but now we'll give them two or three minutes to look at the picture and try to remember what the people are doing. Before we turn the picture over and then ask the students to create sentences about what the people were doing in the picture. Hopefully the students will be able to create sentences such as a woman was bringing flowers to her mother. A man was pouring water. A doctor was showing an x-ray to the patient. Remember that most activities can be varied as so as to increase interest levels. If you've got a nice competitive group of students who feel confident about their grammar, you could create the same activity but make it into a competition. So as to after the two minutes of memorizing the picture, you turn the picture over and challenge each group of students to come up with more sentences than the other groups. At the end of it, you'll see which group came up with the most correct sentences and obviously give them their due congratulations.