Here is a game "Find someone, who..."
Ask your students general questions, for instance, "How are you today?" "What is the weather like today?" "Do you like English?" You can use some more activities from my previous post, and to make the atmosphere more relaxed, you can give them pages with the following questions, ask them to get up and to ask each other "Do you...?", "Are you...?" Make sure they don't speak L1. They are supposed to write their peers' names on the page.
For adults, you can compose a questionnaire with the following questions:
Find someone, who...
has more than two children
runs his/her own business
has been to America
speaks three languages and more
has pets
likes traveling
often goes on business trips
works on shifts
and many more. You can remove some irrelevant questions and add something new, depending on yours and your students' interests.
For kids, you can compose such questions, as:
Find someone, who...
likes chocolate
likes cats and dogs
is an only child in the family
does not like Math
plays football
whose birthday is next month
and many more.
The students walk around the room, ask each other and write their names. Then you ask them to sit down and ask: "Who likes cats and dogs?"
Possible answers: "I like them", "I like cats but I don't like dogs", etc.
Next step is asking them to report. A student says: "Dany likes chocolate, Lena and Tanya speak three languages, Tom likes dogs but he does not like cats".
This activity helps students to get together and get interested in your course.