1) embarrassed:

cheeks are flushed

fighting back tears

heart racing

glancing around

shying away

sweaty hands

2) nervous:

heart racing

stomach full of butterflies

fidgeting

stuttering

lumps in throat

knees are wobbly and feel like jelly

3) anger:

cheeks are flushed

gritting and grinding teeth

fists clenched

eyebrows pulled together

arms crossed, stance defensive

popping knuckles

heavy breathing

voice low and rough

do you guys want more of these??