The mood is conveyed by the choice of words as in simple casual speech or difficult, more formal words, the tone of the writers is something to consider also
Hi! my favorite hobby is fishing.I like fishing. beacuse it gives me the pleasure of full-selfillment.My dad introduced me fishing.I do it 5 times a week.I feel very bored when I have to wait hours to catch a fish but I feel pretty happy when I catch a fish fast.
