Sit down,please.
-you may sit down now.
-take your seat.
-find yourself a seat.
-you are welcomes to seat.
-sit in your seats.
-sit properly.
Stand up.
-go and stand there.
-please stand by the door.
-come stand here/by the board.
-stand facing(the rest of)the class.
Come to the front.
-come to the back of the class.
-follow me.
Walaiporn 003 3EN