You can use many methods to keep others from telling your moves. Let just think of trying for free cards bluffing, check then raising, semi-bluffing, and slow play are some of them. Still this is not all because there is a more different and sophisticated way. This type of play is called an advertising play. It basically means that you will play badly, crazy and do all the wrong moves when you are sure everyone can see that. By doing this you will lose hands for nothing and mess with the other players heads, misleading them, but after a while you can play good poker and win big from those exact players. Advertising plays must be done only with persons you are sure you will play again so you can benefit from them. There is no point in advertising a play on a table where you wont stay and with players that wont see you again.
There are certain types of hands you should consider advertising first, they have priority because they are easy to advertise and most importantly they will get you a believable play overall. When you engage yourself into an advertising play you must not do it with whatever hand you might have. Choose carefully the hands that you will advertise so...