βάκτρῳ δ' ἐρείδου περιφερῆ στίβον χθονός → support with a staff your steps that waver on the ground
eager: P. and V. ἔντονος, σύντονος, ὀξύς, πρόθυμος.
cheerful (of looks): P. and V. φαιδρός, V. φαιδρωπός.
cheerful (generally): P. εὔθυμος; see cheerful.