This is good for all levels and they learn not only new vocabulary when they need it but new things about their classmates.
1. Choose a photo from your phone.
2. Encourage the learners to find out as much as possible about the photo (where was it, who is in it, what are those things in the background etc.). Feed them new vocabulary immediately as they need it (board it). Let them “get the story”. Clearly, selfies are not as fun as an abstract or unusual shot.
3. Have the learners show a photo from their phone and repeat.
If you have too many in the group you could either do this in pairs or have one or two people present a photo every week.
1-1: This works well in 1-1 lessons as described above.