Appearance
She has... (dark hair, blue eyes) / He is... (tall, slim, athletic)
Personality
She is very... / He tends to be... / She can be quite...
Job / hobby
She works as a... / In his free time, he...
Opinion
I admire her/him because... / What I like most about her/him is...
Avoid repeating the same adjectives. Use a variety: kind, generous, determined, creative.