The trio dropped in at BT Sport Cardiff Arms Park on Wednesday to meet the young rugby hopefuls that have been taking part in the Blues Rugby Camps this week.
Over 100 children from across the region have been at the home of the Blues this week to play rugby and attend the popular Blues Rugby Camps.
New signing Amorosino took time out of his kicking drills in the morning to meet the youngsters and pass on some tips.
And Humberstone and Watts-Jones followed in the footsteps of Dan Fish, who was special guest on Tuesday, as they played tag with the young rugby aces before signing autographs and posing for pictures in the afternoon.
Blues Rugby Camps this October half-term conclude tomorrow (Thursday) when the children on the camp will make a special visit to the training base at The Vale to watch the entire Blues squad train ahead of the Guinness PRO12 match with Munster this weekend.
For more information on future Blues Rugby Camps visit www.cardiffbluescamps.com