2 stupid question: raising from the blinds/folding nuts

[joewatch]

6789ds is a good one to raise from anywhere if you are playing an aggressive style. But I would suggest you never raise from the blinds if you are just starting out.

For your 2nd question, it depends on the bet size. For a small bet, I might take a card off hoping for a K or flush draw on the turn. But any 4,6, or 7 you will probably have to give it up. The caller likely has AA.