1) Act crestfallen 2) Act dejected 3) Act depressed 4) Act emo 5) Act gloomy 6) Act glum 7) Act like Eeyore 8) Act listless 9) Act sad 10) Act sulky 11) Act sullen 12) Act the gloomy Gus 13) Be a Debbie Downer 14) Be a downer 15) Be a drag 16) Be a Gloomy Gus 17) Be a sad sack 18) Be blue 19) Be dispirited 1) Brood 2) Dallier 3) Dillydallier 4) Look sad 5) Lounger 6) Pout 7) Sulk 
• (n.) A dull, spiritless person. • (v. t.) To make spiritless and stupid. • (v. i.) To be dull and spiritless.
To be in low spirits. Generally means sulking but can mean depressed
Mope intransitive verb [ imperfect & past participle Moped ; present participle & verbal noun Moping .] [ Confer Dutch moppen to pout, Prov. German muffen to sulk.] To be dull and spiritless. ' Moping melancholy.' ...Mope noun A dull, spiritless person. Burton. Mope transitive verb To make spiritless and stupid. [ Obsolete]
[v] - move around slowly and aimlessly 2. [v] - be apathetic, gloomy, or dazed