usually (often, sometimes) when you are happy
When I am nervous I usually like to be alone.
When I am nervous I sometimes eat tasty things
When I am angry I often read books / magazines / newspapers.
When I am angry I sometimes shout and cry.
When I am sad I sometimes draw funny pictures or listen to a walkman (to music / to rock/ to pop-music).
When I am sad I usually arrange a party or have a picnic.
When I am sad I often play the piano (the guitar), dance, go to disco,watch TV / videos, play with my pet, play jokes,talk with my friends,
When I am tired I always stay at home.
When I am tired I usually have a cup of tea and go to bed earlier.
b) When my friend is nervous, he usually keeps silence and thinks over what to do.
When my friend is angry he sometimes begins to speak in a loud voice.
When my friend is sad he often watches comedy films to cheer up
When my friend is tired she always has a massage.