interested

having or showing interest; especially curiosity or fascination or concern

• “an interested audience”
• “interested in sports”
• “was interested to hear about her family”
• “interested in knowing who was on the telephone”
• “interested spectators”

involved in or affected by or having a claim to or share in

• “a memorandum to those concerned”
• “an enterprise in which three men are concerned”
• “factors concerned in the rise and fall of epidemics”
• “the interested parties met to discuss the business”