help in tomb raider -legend

hello

im in japan part in the second flor ther is this big coin in the midlle of the screens that i have to do this thing:Notice how the very middle of it is shiny? Grapple it and give it a tug
to pull it off the wall. It will sway a short way before coming to a
halt. Give a little bit more of a convincing with Lara's guns by
shooting the support clamps on either top corners to send it flying
downwards.

now , u dont know how to give it a tug ? how can i do it ? i use my grapple on it and try to pull it but i wont move:-(

how to i give it a tug ? what do i have to push on my kebord ? i going dead here help me please

It's been a while since I played the game, so all I can do is give u a link to a good walkthrough.

http://www.tombraiders.net/stella/walks/TR7walk/japan.html

Just press escape to go to the menu screen got options, then controls. That should bring up a menu of different buttons. All you need to know is the grapple button and the interact button.

Then just look up at the middle tv screen press your grapple button and then interact button. Lara should then start pulling it down, although it doesn't move that much. Then above the tv screen there are two supports to keep the tv screen up. Shoot them with any gun and the tv screen should fall on top of the cubicles and give you an exit.