The present paper involves using linguistic and extra-linguistic elements as markers of the speaker's intention for speech applications involving emotion, namely an emotional Text-to-Speech system or a Speech-to-Emotion system for Greek. These speech-processing systems require emotional speech recognition and consequent text to emotion conversion. The linguistic and extra-linguistic elements concerned are extra-linguistic markers behaving as pointers to key-information [4] as well as discourse particles functioning as elements of positive politeness [2]. These elements signalising the speaker's mood and intentions are named "intention markers" and are retrieved from a set of spoken corpora. The "intention markers" are used for the construction of a written corpus, which in turn will be used for an emotional Text-to-Speech or a Speech-to-Emotion application. The "intention markers" are inserted in the appropriate positions of the written corpus. The (constructed) written corpus was evaluated by native speakers with linguistic knowledge.