Now you may type any of the codes listed below: To activate cheatmode, type in 'set DeusEx.JCDentonMale bCheatsEnabled True' without the quotes in the console. In game, press T to make a line 'Say:' display at the bottom.
Edit user.ini in the deusex/system folder and change an empty key binding from (example!) 't=' to 't=talk' (do this for all occurances of 't=').