How to make a signature link clickable?



Sorry craig, could you spell it out for me... I really have no idea how to use href tags.
 
Insert a signature automatically. In a new message, on the Message tab, in the Include group, click Signature, and then click Signatures. ...
OR

Insert a signature manually. In a new message, on the Message tab, in the Include group, click Signature, and then select the signature that you want.