Re: internet dating pictures and activities
Coming from a female POV (as I've seen many profiles since I've been back on the dating market) so I'll list my biggest pet peeves:
1) proper spelling and usage of grammar
2) don't be too lengthy or too short in your description
3) do not post shirtless selfies. In fact, just avoid self portraits altogether. 2-4 pictures should suffice (not grainy and rather recent - absolutely no photos of you with 3 women wrapped around your arms or with another woman, unless she's your aunt or grandma)
4) when emailing a woman, do not say "hi", "hello", "hey sexy....dear, hon, pretty, baby". It is the equivalent of cat-calling and it is better not to make any reference to her appearance. The ideal message is to send a 2-3 sentence message which indicates you've read her profile. She will know you did not copy and paste and it's not a generic canned opening message you could have sent to any woman.
Whatever you do, do not post photos of you in a gym. I know fitness is portrayed as a good thing, however, any photos of anyone in a gym immediately turns me off. I prefer a man who is more outdoorsy active (biking, hiking, golfing, playing soccer or a sport), not pumping weights. It gives off a shallow meat-head vibe especially those that state they go at least 4-5 times/week. Also, as already stated by Evinrude, no one cares about hobbies (at least they shouldn't put so much weight on it). IF you can play a musical instrument, that's fine to list, but it's not a requirement. I am not a fan of the extreme sports type either (bungee jumping, sky diving, marathons, triathlons etc). It gives off the vibe where you can't sit still and are always on the go seeking the next adrenaline rush.
If you do all this, you would probably be in the minority (which would make you stand out in the crowd).
Hope that helps.