Hi Jolley, I personally always wear my pump "out", clipped to my pants pocket. (I have the traditional "tubed" kind). I've been pumping for 25 years, so everyone who knows me knows what it is. You will get used to it, really. Have you been enjoying the flexibility pumping gives you? Have your blood sugars been flattening out?
As to airport security, I think it can be hit or miss. here's a good discussion on how to handle things
https://forum.tudiabetes.org/topics/insulin-pumps-vs-tsa-security-air-travel-update-for-last-quarter
and here are some ideas on how to wear it with summer clothes and swimsuits
https://forum.tudiabetes.org/topics/how-do-you-wear-an-insulin
http://www.tudiabetes.org/group/minimedparadigmusers/forum/topics/pumping-on-the-beach
https://forum.tudiabetes.org/topics/methods-of-wearing-a-pump-with-a-dress-skirt