I use these commands:
/clone - to clone the person (which changes your nickname theirs) and
/unclone - to change your nickname back.
But there's other's that may be easier to use:
/clone - Clone your contact.
/unclone - Restore your DP, nick and PSM.
/stealname - Steal the nick.
/stealdp - Steal the DP.
/stealpsm - Steal the PSM.
/say 1 - Speak instead of your contact.
/say 2 - Speak instead of everybody.
/say 0 - Disactivate 'say'.
/say 'You text' - Speak instead of your contact.
Just say these commands in a conversation.
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