Lucid Dream Activity ideas

I thought this would be interesting for those who dont know what to do once in a lucid dream.

List any ideas you have that you can do in a lucid dream.

Here are a few ideas:

1. fly
2. Become a ball and get bounced around
3. (This idea is from another post) lift an ocean and get under it and let it drop

uh... there are a lot of threads like this, but..............

4. Summoning dream characters
5. conversing with said DC's
6. fighting against said DC's
7. Fighting along side said DC's