Each slide contains the question ¿Te gusta...? with either a cognate or simple term as well as a picture. Divide the room in half using scotch tape and have students go to either side of the room. Ask each group ¿Te gusta..? (or les gusta, I just do this early on when they haven't learned the conjugations and only need to know me and te). Students must respond either me gusta or no me gusta (they can also include the object).
This can also be done by asking individual students in the room instead of having them stand.