All terms in this list:

impromptu: Improvised; without prior preparation; extemporaneous; unplanned.

ajar: Slightly turned or opened; as, the door is ajar (adjective usage).

tentatively: Uncertainly or hesitantly

tremor: A shake, quiver, or vibration.

commence: To begin, start.

beckon: To wave and/or to nod to somebody with the intention to make the person come closer.

gnarled: made rough by age or hard work

ominous: Specifically, giving indication of a coming ill; being an evil omen; threatening; portentous; inauspicious.

covetous: craving for wealth; greedy

Benevolence: attitude to do good; act of kindness

jocund: happy; in high spirits

hi: A friendly, informal, casual greeting said when meeting someone.