Pro tips (from an amateur)

1. Some flea market stands don't ID.
2. Aluminum cans are a terrible device for your lungs, try a banana or other fruit instead. 
3. Don't take that other gummy, I know its tempting but it'll come back out sooner than later.
4. Be careful of the Michigan stuff if you're an Ohioan, a single nug hits like a tank.

If you have any other good tips, share with the class.

Bonus tip; Make sure to have a sitter during your entire meeting with "SID". Mine dropped out halfway through and its a rough lone road.