Seriously, the key to getting in the final 3 is finding an alliance of 3-4, no more, and maybe finding another alliance and playing them off against each other, with you being clean each way.
Or find one, and make sure you're likeable and make others unlikable so others get voted for. Don't go for the inactive straight away! Infact, go for the most active person who isn't in your alliance, then get the inactives out after.
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