tilt entertainment, a gaming design firm, has developed a new game called world below. in order to get wider distribution, tilt participates in the gaming entertainment expo, which is attended by both sellers and consumers. tilt sends a team of representatives for game presentation and negotiation and a team of professional gamers to showcase world below at the expo. the company also sends a team to sell its other games to consumers at the expo. which promotion mix tool has tilt used in this scenario?