Attentiongetter

9 clues
Yoo-hoo
Big wave, e.g.
Psst, puzzlers!
Psst, for instance
It'll catch your eye
Poke on Facebook, say
Psst!" or "Ahem!", e.g.
Arm wave or finger snap
Verbal nudge found in each set of puzzle circles
Similar answers:
Atotsattention
Attention
Attentiongetter
Attentionpleas
Attentionplease
Attentions
Attentionspan
Attentionspanish
Attentionto
Attentive
Attentively
Attractattention
Attractsattention
Bayattention
Begforattention
Bluecoatatattention
Callattentionto
Centersofattention
Closeattention
Demandattention