The Avengers ngôi sao traveled to Guinea this week (beg21Jan13) to visit communities which have been được trao a boost bởi the organisation.
Hiddleston met with youngsters at a school in the capital city of Conakry, and he took to his Twitter.com page to đăng tải a photograph of his visit.
In an accompanying post, he writes, "Children at Tinafan, a UNICEF-supported school for the circus arts in Conakry, who put on an incredible show."
The actor has promised to document his whole trip in posts on Twitter.