If you aren't a teenager and want to be taken seriously and professionally, perhaps a photo of you in a bikini or shirtless isn't the best social media profile picture no matter how good you look. Your profile photo is the first introduction to you. The wrong photo can easily convey the message that you aren't serious or professional.
ProTips
While nearly all of these can be summed up with two words: kindness and consideration, sometimes it takes more than 140 characters to share words of wisdom. These are the long versions of some of the #ProTips I shared on Twitter yesterday. 1) Don't ask for easily accessible information. This also means don't ask for something you've already asked for recently. For example: email addresses. Before you contact a colleague or professional contact for an email address, try Googling or at least searching your own past messages. Email addresses aren't hard to find. (See this post on finding an email address.) 2) Don't be unrealistic in your requests. If you want help, make sure it will take the person you are asking for help from less than 10 minutes. Whether it's a presentation review or resume edits also make sure that the person you are asking for help from: has the time doesn't have a conflict of interest isn't something they have clients for 3) Don't ask for something for free if the person you are requesting help from usually gets paid for the same service.