None. Clara simply kisses Hans-Peter (who was once the Nutcracker) in relief on the forehead when he revives after the Battle with the Mice (she had assumed him dead). Unlike later revivals of this production, Clara and Hans-Peter do not seem to be really in love here, just good friends, and there is not nearly as strong an implication in this 1985 version (as there is in the 2001 and 2009 Royal Ballet versions of it) that they will end up together in real life.