...and if you've only got one radio, then request a frequency change for two minutes to get the ATIS and tell them 'you'll report when back on frequency', that way they know a).you're not listening, and b). you'll be back!!
"Posh" helo's with 2 radios can even talk 'vox 2' to another controller e.g. in the next control zone on your flight plan to warn them you're coming.... can get very confusing though!!!