Hi Anastasia,
I would first start with a relaxed ice breaker of some type to get the students talking with each other and you. Participate in the ice breaker so you can interact with the students in an informal way. Share with your students your professional experience and if possible interject some humorous stories from your experience. This shows the students that you have a sense of humor and that you are approachable.
Be in the class early and welcome the students, try to chat a few seconds with each student. Ask them questions about their weekend, favorite activity, anything… >>>