Playing blackjack tonight. Any advices?

Good idea is to think that the face down card the dealer is showing is a 10 and play off of that. Like if the dealer is showing a 6, you'd probably want to stay with anything better than a 12. Don't double down when the dealer is showing a face card. It is safe to double down on a 8 or a 9 if the dealer is showing less than that. Don't split if your card is equal or less than the dealer's card. Keep a running tally in your head of the face cards. 2 Decks --- 32 face cards and 8 aces.