‘Guess Who/What?’: the simple party trick of common fame that students love. Place a key word/character/concept etc. onto a post it and place it upon the forehead of a student – they subsequently have a limited number of questions they can ask before they guess the term/topic on the post it.
Taboo (recommended for more able students): Give the student a word they have to make the rest of the class/team guess. However, you must prevent students from using the most obvious words by making them TABOO.
Talk partners: Ask students to share their ideas with one another before sharing with the group/class.