

Tickling requires the other --- you can't tickle yourself
The Other is a term to draw our attention to the fact that for 99.99% of our existence we watched other faces, and rarely saw our own except as glimpsed in ponds or pools.
The Other is not everyone else. It is not those over against whom the 'I' stands out. To the contrary, the other is those from whom the 'I' does not distinguish oneself.
Other is, in other words, necessarily 'other than other', just as 'different means different from different'.
The Other is a notion concerned with the fact that some of our most intimate feelings and attitudes, and even beliefs and knowledges, manage to be displaced to some figure outside of the self. The other can 'believe and know for me'.
The Other is, in hermeneutics, no longer an object for the subject but rather someone to whom we are bound in the reciprocations of language and life.