| custom(noun, form, action, characteristic, thing) |
| during(preposition, past, within, between, across) |
| engrossed(adjective, desire, troubled, involved, attentive) |
| erudite(adjective, informal, knowledgeable, informed, cultured) |
| go-go(adjective, alert, familiar, wise, knowledgeable) |
| groovy(adjective, alert, familiar, wise, knowledgeable) |
| hip(adjective, alert, familiar, wise, knowledgeable) |
| immersed(adjective, deep, involved, concerned, absorbed) |
| in the know(expression, adjective, idiom, alert, familiar) |
| informed(adjective, alert, familiar, wise, knowledgeable) |
| interest(noun, notice, attention, attraction, awareness) |
| involved(adjective, keen, sympathetic, excited, attentive) |
| keen on(expression, adjective, hooked) |
| knowing(adjective, alert, familiar, wise, refined) |
| on(adverb, out, forward, outward, onward) |
| on the beam(expression, idiom, alert, familiar, wise) |
| on to(expression, alert, familiar, wise, refined) |
| per |
| really into(expression, adjective, smooth, desire, smart) |
| savvy(adjective, smooth, smart, alert, familiar) |