Heat speciation and also increasing the random (non-translational) motion of the particles.
Latent heat of fusion converts solid to liquid
Latent heat of vaporization converts liquid to gas .
The second point is that thermal energy, away from the point of phase changes, will make the particles ‘jiggle’ more quickly. Temperature (related to, but not the same as heat energy) is the average kinetic energy of the particles in a body.