Well I have started using Macros for RP, I play a bard and when you have set pieces to perform it is better than cut/pate for every line. I have also started mixing in emotes for characterisation.
Here are some tips:
You get 15 lines so split things over separate macros
The /wait is good to provide a gap between each line rather than pop a wall of text
Emotes with the "motion" modifier don't generate an emote
Use "/ac" to activate a skill, such as one of the bard songs
Alt and keypad 13 gets you ♪, or other alt presses
Good emotes are angry, yes, no, sooth. But use others too for effect.
Ok so perhaps best to give you an example.