The unusual appeal was made by the British Council, which is concerned by the dearth of people who can speak a foreign language.
In August, a poll of 2,098 UK adults by the British Council poll found a quarter felt nervous at the thought of having to speak a language on holiday.
The Council's languages drive comes as the number of students taking the General Certificate of Secondary Education (GCSEs) in modern languages continues to fall.
Higher Education Statistics Agency data released in February showed that entries to modern foreign language degree courses had dropped.
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The British Council says tackling "just a phrase a day" in a foreign language could see people greatly improve their language skills.
The British Council is the UK's international organisation for educational opportunities and cultural relations.
The Council's campaign is being backed by actor and broadcaster Larry Lamb.
Supporting the Council's campaign, Lamb said: "Languages, for me, are about opening the world up. It gives you another soul, it gives you another person. My teacher, Miss Smith, started to teach us French.
Vicky Gough, schools adviser at the British Council, said: "The UK is currently facing a shortfall in people who can speak foreign languages.
"And with lots of free and innovative ways to get started, there has never been a better time to take up a new language.
"More than that, the benefits of learning one are huge - from boosting job prospects to acquiring the ability to understand and better connect with another culture.