Are you having trouble locating yourself at a table? Do you have a preferred seat that you'd like to be in? If so, changing where you're seated is easy!
When you join a table, you are seated randomly. Your seat doesn't affect the cards that you're dealt, but players often like to play in the same seat to make it easier to find themselves at the table.
When the table is open, there are two arrows on the upper right of the game board. One arrow points left and allows you to move seats to the left, the other arrow points right and allows you to move seats to the right.
Just move around the table until you find the right spot!