Please share some ideas for teaching one to one English lessons.

These are pretty tough lessons to teach cuz the teacher/student usually feel they have to be *on* all the time.

What activities can I include to mix in with the lesson to make it more interesting and fun?

I've tried role plays that the student requested, and an Email session (where we write back and forth to each other for 5 mins rather than speaking).

Know any good resources or do you have ideas? Please share. Thanks.