Question

How can heat from the sun transfer from the cement to your feet?

Answer 1

The conduction from the uv rays heats the ground and then your feet

Answer 2

Heat is motion of atoms and molecules. The greater the motion, the
more heat energy there is in a solid, liquid, or gas.
Energy transfer happens between molecules or atoms when they come
in contact.
This kind of heat transfer is conduction. Heat can transfer by
conduction from atom to atom in a material, or between two different
materials when their atoms or molecules make contact.