This excerpt taken from the GLUU 8-K filed Jan 25, 2008.
To accept the Offer, you must sign Box 3 regardless of which other Boxes you complete. In the case of joint holders, all joint holders must sign. Each individual holder must sign in the presence of an independent witness. The witness must be over 18 years of age and must not be one of the joint holders. The same witness may witness each signature of the joint holders. If the acceptance is not made by the registered holder(s), insert the name(s) and capacity (e.g. executor) of the person(s) making the acceptance. Any person making an acceptance on behalf of a registered holder should deliver evidence of his/her authority in accordance with the notes on page 4. A body corporate incorporated in England and Wales may execute this Form of Acceptance under its seal, which should be affixed and witnessed in accordance with its articles of association or other regulations. Alternatively, a company to which section 36A of the Companies Act 1985 applies may execute this Form of Acceptance by a director and the company secretary, or by two directors of the company, signing the Form of Acceptance. If you sign Box 3 without putting NO in Box 4, you are deemed to have represented and warranted in the terms of the Offer Document. Please see the further notes on page 4.