Happy – feeling or showing pleasure or contentment, having a sense of confidence in or satisfaction with (a person, arrangement or situation, satisfied w/ the quality or standard of, willing to do something.

Synonyms: cheerful, carefree, content
Antonyms: sad, sorrowful, sigh

Trust – a firm reliance in or on the integrity, personality or ability of someone especially God, to rely upon, depend on have faith in.

• By being circumspect about: cautious or careful – Proverbs 16:20
• By being connected or close to – Psalm 2:12
• By being cognizant/considerate/conscious of – Psalm 34:8
• By being complete in – Psalm 84:11,12
• By being/having conviction/craving for – Psalm 146:5; Psalm 144:15; Jeremiah 17:7
• By being compliant/cooperative with – Isaiah 30:18