By the same token, ignore unwanted advice from other players. They'll usually tell you what to do, whether you ask them or not. Some blackjack players get upset if you enter the game in the middle of the shoe. They've won six hands in a row, and now you sat down and ruined everything. Not true, of course, but it's good manners to ask the other players if you can join in.
Many people avoid sitting at third base, which is the seat immediately to the dealer's right.
The thinking is that how this person plays his cards determines the cards that the dealer gets. I don't agree. After all, you're playing your cards against the dealer's cards, and how anyone else plays their cards shouldn't really matter. In fact, I like the last seat. It gives me more time to think about how I want to play my hand.