NEW DELHI, April 10 (Reuters) - The Dalai Lama, the Tibetans' 87-year-old spiritual leader, apologised on Monday after footage showed him asking a young boy to "suck my tongue" at a public event. The video, which has 1 million views on Twitter, also shows the Nobel peace laureate apparently giving the boy a peck on the lips in presence of an audience who are heard clapping and laughing, while a man captures the moment on a phone. See here for a complete list of exchanges and delays