[Oliver is about to protest that opening the body-print machines wasn't quite the same as actually operating their main controls, but he glances at Jamie first. seeing his eager face, he realises that his friend has a point] Good idea. [so he passes the match and the box to Jamie] Just strike it against the side and hold it up to one of those...lever things. [he gestures at the rather fleshy levers on the now-empty body-print machines] And uh...I'll be ready with the self-destruct.

[that said, he turns to the equally-fleshy main controls, frowning down at them as he tries to remember exactly what the Doctor said to do with them. he has to get this right--his flatmates and Birmingham itself are counting on him]